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geminusrufus · 8 months ago

Text

A Better Way to Get Data

0: Been a Minute

I came out the gate real strong on these dev blogs then completely dropped off. Oops.

In my defense, I got an actual salaried job, and it has been pretty hectic. Like, miss-application-deadlines-for-PhD-programs hectic. It's not all bad though! For starters, I honestly need the break from being a student. Also, it's a ~tech job~ and I'm taking the opportunity to learn more about programming, tool development, and project management.

"Why does any of this matter?"

Because a current work project clued me into a better way to collect inscriptional data!

1: A Better Way

In previous posts, I explained how to scrape Greek inscriptions from the Packard Humanities Institute website. Here's that post (link), if you want some context.

This is the method I used for my thesis, but it has some problems. It's pretty slow (I had to leave the full scraper + cleaner to run overnight), and it wasn't the most accurate. Since the data was just sitting untagged in pretty minimal HTML format, nothing was really tagged. I worked around this by giving the scraper search parameters with some... functional Regular Expression (I'll cover that in head crushing detail later). Unfortunately, Regular Expression is an avatar of the devil and my sloppy search parameters introduced numerous errors, especially when it came to inscription dates.

However, we can do away with scraping entirely and retrieve the data in XML format, along with more details about the book and chapter of the Inscriptiones Graecae they're found in, using API calls!

2: What's an API?

idk. someone elses code for you to vandalize.

ok, API stands for application programming interface. An application is just a piece of software that fulfills a function, and an API communicates between applications.

So say you have a website that shows you some data. In this example by John Watson Rooney, it's listings of sunglasses from the Sunglass Hut website. Rather than hard-code a page with every pair of sunglesses and the corresponding prices, the website has a field for the different offerings that's filled in by an API. When you open a list of sunglasses, an API grabs the relevant data and presents it to the website for formatting. In this example, the website is one application, the data server (or partition, etc.) is another application, and the API is responsible for carrying information about sunglasses in between the two.

That means the data is actually stored separately from the website. If you wanted to, you could just call that API yourself and retrieve the raw data!

3: Applying This

Now here's where we can start to apply things. Multiple volumes of the Inscriptiones Graecae are available online, free of charge, through the Berlin-Brandenburgische Akademie der Wissenschaften (the current publishers). Here's a link, but note that it's not a secure page.

I originally bounced off this site and landed on the Packard Humanities institute because I only knew how to scrape, and the Akademie's APIs had me totally confounded. But I've leveled up, and I think it's time to use the resource to its fullest.

There are a few APIs at work here. One just gets a list of all the inscriptions, organized by book, in JSON format (don't...worry abt it just yet). Just slap this into your browser and take a look:

http://telota.bbaw.de/ig/api/inscriptions

Another

Another gets information about each volume, including the subject region, volume name, and (very crucially!) the volume identifier used by the APIs to select a specific book. Check this one out too:

http://telota.bbaw.de/ig/api/getVolumes

The site has plenty more: some for grabbing chapters, some for sections organized by chapter, some for an ordered list of sections without chapters, etc. Every which way you could want to get information about a book, you have it.

Then, at the very end of it all, you can grab an actual inscription, this time in XML format. Give this last one a try:

http://telota.bbaw.de/ig/api/xml/IG%20I%C2%B3%201

Let's take a second to parse that. It starts with "telota.bbaw.de": TELOTA stands for The Electronic Life Of The Academy, and BBAW stands for Berlin-Brandenburgische Akademie der Wissenschaften (Berlin-Brandenburg Academy of Sciences). TELOTA is the digital humanities wing of the BBAW!

Moving on, "ig" stands for Inscriptiones Graecae, and "api" denotes that we're making an API call, rather than viewing the site normally. Then, "xml" indicates the viewing format.

Now the good part! We have this arcane looking string "IG%20I%C2%B3%201". It's not actually all that bad — those %20s are just escape codes (remember we dealt with those before!) indicating spaces. Unescape them out and we get this

http://telota.bbaw.de/ig/api/xml/IG I%C2%B3 1

Well, doesn't that "IG I" look familiar!

That "%C2%B3" looks a little more complicated, but if we check this list of escape codes, we find that it's equivalent to ³ (superscript 3). Knowing that, we can unravel the rest of the link:

http://telota.bbaw.de/ig/api/xml/IG I³ 1

And there it is! The last portion is just the book series (IG), the volume (I³), and the inscription!

4: Putting It Together

So here's the plan. I need to write a script that uses the known APIs to call a list of each volume, its chapters, sections, etc. Using the data from the responses, it will gather a list of inscriptions by section into a table, where each row has the volume, chapter, section (etc), and inscription number. This will involve converting JSON to R tibbles, but I've experimented with the Jsonlite package which does just that. It's nothing too complicated!

Next, I need a script that will build API calls out of these inscription numbers, then use the responses to fill more data into the table. This will involve converting XML to R tibbles, which I don't have any experience with, but the data format is widely used so I expect tools have been developed.

Once that is done, I should have a table of inscriptions in (hopefully) much less time and with minimal errors in time or location data!

#quantitative linguistics #ancient greek #classics #classical greek #programming #API #historical linguistics #R #dialectology

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tammy-designz · 5 years ago

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Problem Encountered

JavaScript is a programming language that is designed to enhance and expand web development. In most cases, JavaScript is used to create responsive, interactive elements for web pages that enhance user experience. Using JavaScript, you can easily and quickly create content like menus, animation, video players, interactive charts and even basic in-browser games.

I tried making a music player using javascript. However, with no knowledge of Javascript, I was unable to make the music player.

I found a jquery code on w3school and was able to play and stop button.

Jquery is a lightweight, JavaScript library, ' write less, do more. ' JQuery aims to make JavaScript on your website much easier to use which takes a number of common tasks that need to perform several lines of JavaScript code, and bundles it in ways that a single line of code will call you.

The jQuery library contains the following features:

HTML/DOM manipulation

CSS manipulation

HTML event methods

Effects and animations

AJAX

Utilities

Because it didn't have any template of the CSS attempts were made to adjust but proved futile.

Template of the code

<!DOCTYPE html> <html> <body>

<button onclick="getVolume()" type="button">What is the volume?</button> <button onclick="setHalfVolume()" type="button">Set volume to 0.2</button> <button onclick="setFullVolume()" type="button">Set volume to 1.0</button><br>

<video id="myVideo" width="320" height="176" controls> <source src="mov_bbb.mp4" type="video/mp4"> <source src="mov_bbb.ogg" type="video/ogg"> Your browser does not support HTML5 video. </video>

function getVolume() { alert(vid.volume); }

function setHalfVolume() { vid.volume = 0.2; }

function setFullVolume() { vid.volume = 1.0; } </script>

<p>Video courtesy of <a href="https://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p>

</body> </html>

Great News,

i was advised by my tutor on 18th December and i was told to consider placing both buttons in a div, then position that div it. So i got it removed from the side and it is now above the image.

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sweetswesf · 7 years ago

Text

Code I Ran Today: 08/08/2017

Language: JavaScript

See it Live & run it yourself: Code I Ran Today: 08/08/2017

Background: I was given about an hour and a half to do this problem. I couldn’t get it in that time, but I would NOT let myself go to sleep without finishing it. I pushed myself and was finished and in bed before midnight! #nevergiveup

Code:

#code i ran today #swe #software engineering #never give up #repl.it #javascript

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felord · 3 years ago

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CCC Shape Solved

Implement a Shape hierarchy as shown in the figure above. Each TwoDimensionalShape should contain method getArea to calculate the area of the two-dimensional shape. Each ThreeDimensionalShape should have methods getArea and getVolume to calculate the surface area and volume, respectively, of the three-dimensional shape. Create a program that uses an array of Shape references to objects of each…

View On WordPress

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juliosmith-blog1 · 7 years ago

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evry BIS 311 Final Examination Answers

Follow Below Link to Download Tutorial

https://homeworklance.com/downloads/devry-bis-311-final-examination-answers/

For More Information Visit Our Website ( https://homeworklance.com/ )

Email us At: [email protected] or [email protected]

Question 1.1. (TCO 1) In the systems development life cycle, the goal of the design activity is to _____. (Points : 5)

determine exactly what a new or modified information system should do

create a set of detailed plans or blueprints for the system

build the application

ensure that the application works as desired

Question 2.2. (TCO 2) To plan the code for a procedure, _____ uses standardized symbols to show the steps the procedure must follow to reach its goal. (Points : 5)

pseudocode

a TOE chart

a class diagram

a flowchart

Question 3.3. (TCO 3) Computer memory locations where programmers can temporarily store and change data while an application is running are _____. (Points : 5)

classes

literals

constants

variables

Question 4.4. (TCO 3) In Visual Basic, which of the following correctly declares a named constant with the name strCOURSE that contains the string value “BIS311”? (Points : 5)

Const strCOURSE As String = “BIS311”

String Constant strCOURSE = “BIS311”

Dim strCOURSE As “BIS311”

Const String “BIS311” As strCOURSE

Question 5.5. (TCO 5) A _____ structure is used in an application when a decision needs to be made, followed by an action derived from that decision. (Points : 5)

selection

sequence

repetition

interrogative

Question 6.6. (TCO 5) If intQty contains 60, what will be the value of intPrice after executing the following code?

Select Case intQty

Case 1 To 50

intPrice = 10

Case 51 To 100

intPrice = 8

Case > 100

�� intPrice = 6

Case Else

intPrice = 0

End Select (Points : 5)

Question 7.7. (TCO 6) The loop below is classified as a(n) _____ loop.

Dim intNum As Integer = 2

MsgBox( intNum.ToString() )

intNum *= intNum

Loop While intNum < 1000 (Points : 5)

infinite

pretest

posttest

counter-controlled

Question 8.8. (TCO 6) Which element of the following array contains the value “Red”?

Dim strColors() As String = {“Red”, “Green”, “Blue”, “Yellow”} (Points : 5)

strColors(4)

strColors(3)

strColors(1)

strColors(0)

Question 9.9. (TCO 7) The _____ of an independent Sub procedure usually begins with the Private keyword. (Points : 5)

Call statement

argument list

procedure footer

procedure header

Question 10.10. (TCO 7) In the following function, what should go in the blank in the function header?

Private Function GetRatio(dblNumerator As Double, dblDenominator As Double) _____

Dim dblRatio As Double

dblRatio = dblNumerator/dblDenominator

Return dblRatio

End Function (Points : 5)

ByVal

ByRef

As Integer

As Double

Question 11.11. (TCO 2) An application for a shipping company needs to keep track of the length, width, height, and weight of packages. Using object-oriented programming methods, in this application, the weight of a package would be represented by a(n) _____. (Points : 5)

object

attribute

method

class

Question 12.12. (TCO 4) (TCO 4) Consider the following class definition:

Public Class Box

Public Length As Double

Public Width As Double

Public Height As Double

Public Function GetVolume() As Double

Return Length * Width * Height

End Function

End Class

If crate is an instance of Box, which of the following statements assigns a value to a property? (Points : 5)

crate.Length = 42

dblVolume = crate.GetVolume()

crate.GetVolume(42)

Call crate.Length(42)

Question 13.13. (TCO 8) A programmer makes a connection between a Visual Basic application and a database using the _____. (Points : 5)

Database Integration tool

data box control

Data Source Configuration Wizard

Dataset Designer

Question 14.14. (TCO 9) The components of a two-tier architecture are _____. (Points : 5)

the primary and the secondary

the client and the server

the master and the subordinate

the alpha and the beta

Page 2

Question 1. 1. (TCOs 1, 2, and 3) You have been asked to develop an application with the following business requirements: The user will enter an original price. When the user clicks a Calculate Sale Price button, the application will calculate a sale price by multiplying the original price by 80%. The application will display the sale price to the user.

(a) Develop a TOE chart for this application. You do not need to put it in table form, but list what would go in the Task column, what would go in the Object column, and what would go in the Event column for each row of the chart. Your chart should have at least three rows: one for input, one for processing, and one for output.

(b) Write pseudocode for the button-click event procedure in this application.

(c) Identify two variables and one constant that you would declare for this application. For each, provide a variable or constant name that follows the syntax rules of Visual Basic and the Hungarian naming convention, and an appropriate Visual Basic data type. (Points : 30)

Spellchecker

Question 2. 2. (TCO 5) Consider the following Visual Basic code snippet:

If intScore >= 100 Then

lblMessage.Text = “Great job!”

Else

lblMessage.Text = “Better luck next time”

End If

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

The control structure is an if statement that returns a message based on the value of the variable intScore.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

For 99, the message displayed on the screen will be “Better luck next time” because 99 is less than 100.

For 100, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e. 100 =100 evaluates to true.

For 101, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e 101 >100 evaluates to true.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Question 3. 3. (TCO 6) Consider the following code snippet:

Dim intTotal As Integer = 0

For intNum As Integer = 1 To 5

intTotal += intNum

Next intNum

MessageBox.Show( intTotal.ToString() )

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

The control structure is a “for” loop that controls the execution of the condition and incrementing the intNum variable by 1, until the value 5 is reached.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

The counter variable is intNum as it is increased by one within the loop and used to control the loop while the accumulator variable is intTotal because it stores the incremented value.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points: 30)

The variable intTotal is initialised to 0, then the counter variable (intNum) is increased by one at each step until it obtains a value 5, then the loop stops. The message displayed on the screen will be: 0 1 2 3 4 5.

Question 1. 1. (TCO 7) (a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Spellchecker

(a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

Passing by value refers to a method of referencing variables by initialising them to real values while passing by reference is a reference method that involves assigning values to functions through other variables.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Function sum {

Result=12 ;}

Function sum {

a=10, b=12;

Sum=a+b ;}

Question 2. 2. (TCOs 2 and 4) You have been asked to develop an application to keep track of employees’ scheduled vacations and ensure that all vacations are approved by the manager and that each employee does not exceed his or her maximum annual vacation time. Maximum annual vacation time is determined by the number of years the employee has worked for the firm. You are using object-oriented programming (OOP) to develop this application.

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Spellchecker

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Question 3. 3. (TCOs 8, 9, and 10) (a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

Spellchecker

(a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

#evry BIS 311 Final Examination Answers

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youralihammad-blog · 7 years ago

Text

BIS 311 Final Examination Answers

Copy and Pate below link into your Browser to buy tutorial

http://hwpool.com/product/bis-311-final-examination-answers/

BIS 311 Final Examination Answers

Question 1.1. (TCO 1) In the systems development life cycle, the goal of the design activity is to _____. (Points : 5)

determine exactly what a new or modified information system should do

create a set of detailed plans or blueprints for the system

build the application

ensure that the application works as desired

Question 2.2. (TCO 2) To plan the code for a procedure, _____ uses standardized symbols to show the steps the procedure must follow to reach its goal. (Points : 5)

pseudocode

a TOE chart

a class diagram

a flowchart

Question 3.3. (TCO 3) Computer memory locations where programmers can temporarily store and change data while an application is running are _____. (Points : 5)

classes

literals

constants

variables

Question 4.4. (TCO 3) In Visual Basic, which of the following correctly declares a named constant with the name strCOURSE that contains the string value “BIS311”? (Points : 5)

Const strCOURSE As String = “BIS311”

String Constant strCOURSE = “BIS311”

Dim strCOURSE As “BIS311”

Const String “BIS311” As strCOURSE

Question 5.5. (TCO 5) A _____ structure is used in an application when a decision needs to be made, followed by an action derived from that decision. (Points : 5)

selection

sequence

repetition

interrogative

Question 6.6. (TCO 5) If intQty contains 60, what will be the value of intPrice after executing the following code?

Select Case intQty

Case 1 To 50

intPrice = 10

Case 51 To 100

intPrice = 8

Case > 100

intPrice = 6

Case Else

intPrice = 0

End Select (Points : 5)

Question 7.7. (TCO 6) The loop below is classified as a(n) _____ loop.

Dim intNum As Integer = 2

MsgBox( intNum.ToString() )

intNum *= intNum

Loop While intNum < 1000 (Points : 5)

infinite

pretest

posttest

counter-controlled

Question 8.8. (TCO 6) Which element of the following array contains the value “Red”?

Dim strColors() As String = {“Red”, “Green”, “Blue”, “Yellow”} (Points : 5)

strColors(4)

strColors(3)

strColors(1)

strColors(0)

Question 9.9. (TCO 7) The _____ of an independent Sub procedure usually begins with the Private keyword. (Points : 5)

Call statement

argument list

procedure footer

procedure header

Question 10.10. (TCO 7) In the following function, what should go in the blank in the function header?

Private Function GetRatio(dblNumerator As Double, dblDenominator As Double) _____

Dim dblRatio As Double

dblRatio = dblNumerator/dblDenominator

Return dblRatio

End Function (Points : 5)

ByVal

ByRef

As Integer

As Double

object

attribute

method

class

Question 12.12. (TCO 4) (TCO 4) Consider the following class definition:

Public Class Box

Public Length As Double

Public Width As Double

Public Height As Double

Public Function GetVolume() As Double

Return Length * Width * Height

End Function

End Class

If crate is an instance of Box, which of the following statements assigns a value to a property? (Points : 5)

crate.Length = 42

dblVolume = crate.GetVolume()

crate.GetVolume(42)

Call crate.Length(42)

Question 13.13. (TCO 8) A programmer makes a connection between a Visual Basic application and a database using the _____. (Points : 5)

Database Integration tool

data box control

Data Source Configuration Wizard

Dataset Designer

Question 14.14. (TCO 9) The components of a two-tier architecture are _____. (Points : 5)

the primary and the secondary

the client and the server

the master and the subordinate

the alpha and the beta

Page 2

(b) Write pseudocode for the button-click event procedure in this application.

Spellchecker

Question 2. 2. (TCO 5) Consider the following Visual Basic code snippet:

If intScore >= 100 Then

lblMessage.Text = “Great job!”

Else

lblMessage.Text = “Better luck next time”

End If

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

The control structure is an if statement that returns a message based on the value of the variable intScore.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

For 99, the message displayed on the screen will be “Better luck next time” because 99 is less than 100.

For 100, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e. 100 =100 evaluates to true.

For 101, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e 101 >100 evaluates to true.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Question 3. 3. (TCO 6) Consider the following code snippet:

Dim intTotal As Integer = 0

For intNum As Integer = 1 To 5

intTotal += intNum

Next intNum

MessageBox.Show( intTotal.ToString() )

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

The control structure is a “for” loop that controls the execution of the condition and incrementing the intNum variable by 1, until the value 5 is reached.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

The counter variable is intNum as it is increased by one within the loop and used to control the loop while the accumulator variable is intTotal because it stores the incremented value.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points: 30)

Question 1. 1. (TCO 7) (a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Spellchecker

(a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Function sum {

Result=12 ;}

Function sum {

a=10, b=12;

Sum=a+b ;}

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Spellchecker

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Question 3. 3. (TCOs 8, 9, and 10) (a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

Spellchecker

(a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

#BIS 311 Final Examination Answers

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essayblueus-blog · 8 years ago

Text

BIS 311 FINAL EXAMINATION ANSWERS

To Download tutorial Copy and Paste below Link into your Browser

https://www.essayblue.com/downloads/bis-311-final-examination-answers/

for any inquiry email us at ( [email protected] )

BIS 311 Final Examination Answers

Question 1.1. (TCO 1) In the systems development life cycle, the goal of the design activity is to _____. (Points : 5)

determine exactly what a new or modified information system should do

create a set of detailed plans or blueprints for the system

build the application

ensure that the application works as desired

Question 2.2. (TCO 2) To plan the code for a procedure, _____ uses standardized symbols to show the steps the procedure must follow to reach its goal. (Points : 5)

pseudocode

a TOE chart

a class diagram

a flowchart

Question 3.3. (TCO 3) Computer memory locations where programmers can temporarily store and change data while an application is running are _____. (Points : 5)

classes

literals

constants

variables

Question 4.4. (TCO 3) In Visual Basic, which of the following correctly declares a named constant with the name strCOURSE that contains the string value “BIS311”? (Points : 5)

Const strCOURSE As String = “BIS311”

String Constant strCOURSE = “BIS311”

Dim strCOURSE As “BIS311”

Const String “BIS311” As strCOURSE

Question 5.5. (TCO 5) A _____ structure is used in an application when a decision needs to be made, followed by an action derived from that decision. (Points : 5)

selection

sequence

repetition

interrogative

Question 6.6. (TCO 5) If intQty contains 60, what will be the value of intPrice after executing the following code?

Select Case intQty

Case 1 To 50

intPrice = 10

Case 51 To 100

intPrice = 8

Case > 100

intPrice = 6

Case Else

intPrice = 0

End Select (Points : 5)

Question 7.7. (TCO 6) The loop below is classified as a(n) _____ loop.

Dim intNum As Integer = 2

MsgBox( intNum.ToString() )

intNum *= intNum

Loop While intNum < 1000 (Points : 5)

infinite

pretest

posttest

counter-controlled

Question 8.8. (TCO 6) Which element of the following array contains the value “Red”?

Dim strColors() As String = {“Red”, “Green”, “Blue”, “Yellow”} (Points : 5)

strColors(4)

strColors(3)

strColors(1)

strColors(0)

Question 9.9. (TCO 7) The _____ of an independent Sub procedure usually begins with the Private keyword. (Points : 5)

Call statement

argument list

procedure footer

procedure header

Question 10.10. (TCO 7) In the following function, what should go in the blank in the function header?

Private Function GetRatio(dblNumerator As Double, dblDenominator As Double) _____

Dim dblRatio As Double

dblRatio = dblNumerator/dblDenominator

Return dblRatio

End Function (Points : 5)

ByVal

ByRef

As Integer

As Double

object

attribute

method

class

Question 12.12. (TCO 4) (TCO 4) Consider the following class definition:

Public Class Box

Public Length As Double

Public Width As Double

Public Height As Double

Public Function GetVolume() As Double

Return Length * Width * Height

End Function

End Class

If crate is an instance of Box, which of the following statements assigns a value to a property? (Points : 5)

crate.Length = 42

dblVolume = crate.GetVolume()

crate.GetVolume(42)

Call crate.Length(42)

Question 13.13. (TCO 8) A programmer makes a connection between a Visual Basic application and a database using the _____. (Points : 5)

Database Integration tool

data box control

Data Source Configuration Wizard

Dataset Designer

Question 14.14. (TCO 9) The components of a two-tier architecture are _____. (Points : 5)

the primary and the secondary

the client and the server

the master and the subordinate

the alpha and the beta

Page 2

(b) Write pseudocode for the button-click event procedure in this application.

Spellchecker

Question 2. 2. (TCO 5) Consider the following Visual Basic code snippet:

If intScore >= 100 Then

lblMessage.Text = “Great job!”

Else

lblMessage.Text = “Better luck next time”

End If

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

The control structure is an if statement that returns a message based on the value of the variable intScore.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

For 99, the message displayed on the screen will be “Better luck next time” because 99 is less than 100.

For 100, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e. 100 =100 evaluates to true.

For 101, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e 101 >100 evaluates to true.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Question 3. 3. (TCO 6) Consider the following code snippet:

Dim intTotal As Integer = 0

For intNum As Integer = 1 To 5

intTotal += intNum

Next intNum

MessageBox.Show( intTotal.ToString() )

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

The control structure is a “for” loop that controls the execution of the condition and incrementing the intNum variable by 1, until the value 5 is reached.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

The counter variable is intNum as it is increased by one within the loop and used to control the loop while the accumulator variable is intTotal because it stores the incremented value.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points: 30)

Question 1. 1. (TCO 7) (a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Spellchecker

(a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Function sum {

Result=12 ;}

Function sum {

a=10, b=12;

Sum=a+b ;}

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Spellchecker

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Question 3. 3. (TCOs 8, 9, and 10) (a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

Spellchecker

(a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

#BIS 311 FINAL EXAMINATION ANSWERS

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jasonbender-blog1 · 8 years ago

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BIS 311 FINAL EXAMINATION ANSWERS

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BIS 311 Final Examination Answers

Question 1.1. (TCO 1) In the systems development life cycle, the goal of the design activity is to _____. (Points : 5)

determine exactly what a new or modified information system should do

create a set of detailed plans or blueprints for the system

build the application

ensure that the application works as desired

Question 2.2. (TCO 2) To plan the code for a procedure, _____ uses standardized symbols to show the steps the procedure must follow to reach its goal. (Points : 5)

pseudocode

a TOE chart

a class diagram

a flowchart

Question 3.3. (TCO 3) Computer memory locations where programmers can temporarily store and change data while an application is running are _____. (Points : 5)

classes

literals

constants

variables

Question 4.4. (TCO 3) In Visual Basic, which of the following correctly declares a named constant with the name strCOURSE that contains the string value “BIS311”? (Points : 5)

Const strCOURSE As String = “BIS311”

String Constant strCOURSE = “BIS311”

Dim strCOURSE As “BIS311”

Const String “BIS311” As strCOURSE

Question 5.5. (TCO 5) A _____ structure is used in an application when a decision needs to be made, followed by an action derived from that decision. (Points : 5)

selection

sequence

repetition

interrogative

Question 6.6. (TCO 5) If intQty contains 60, what will be the value of intPrice after executing the following code?

Select Case intQty

Case 1 To 50

intPrice = 10

Case 51 To 100

intPrice = 8

Case > 100

intPrice = 6

Case Else

intPrice = 0

End Select (Points : 5)

Question 7.7. (TCO 6) The loop below is classified as a(n) _____ loop.

Dim intNum As Integer = 2

MsgBox( intNum.ToString() )

intNum *= intNum

Loop While intNum < 1000 (Points : 5)

infinite

pretest

posttest

counter-controlled

Question 8.8. (TCO 6) Which element of the following array contains the value “Red”?

Dim strColors() As String = {“Red”, “Green”, “Blue”, “Yellow”} (Points : 5)

strColors(4)

strColors(3)

strColors(1)

strColors(0)

Question 9.9. (TCO 7) The _____ of an independent Sub procedure usually begins with the Private keyword. (Points : 5)

Call statement

argument list

procedure footer

procedure header

Question 10.10. (TCO 7) In the following function, what should go in the blank in the function header?

Private Function GetRatio(dblNumerator As Double, dblDenominator As Double) _____

Dim dblRatio As Double

dblRatio = dblNumerator/dblDenominator

Return dblRatio

End Function (Points : 5)

ByVal

ByRef

As Integer

As Double

object

attribute

method

class

Question 12.12. (TCO 4) (TCO 4) Consider the following class definition:

Public Class Box

Public Length As Double

Public Width As Double

Public Height As Double

Public Function GetVolume() As Double

Return Length * Width * Height

End Function

End Class

If crate is an instance of Box, which of the following statements assigns a value to a property? (Points : 5)

crate.Length = 42

dblVolume = crate.GetVolume()

crate.GetVolume(42)

Call crate.Length(42)

Question 13.13. (TCO 8) A programmer makes a connection between a Visual Basic application and a database using the _____. (Points : 5)

Database Integration tool

data box control

Data Source Configuration Wizard

Dataset Designer

Question 14.14. (TCO 9) The components of a two-tier architecture are _____. (Points : 5)

the primary and the secondary

the client and the server

the master and the subordinate

the alpha and the beta

Page 2

(b) Write pseudocode for the button-click event procedure in this application.

Spellchecker

Question 2. 2. (TCO 5) Consider the following Visual Basic code snippet:

If intScore >= 100 Then

lblMessage.Text = “Great job!”

Else

lblMessage.Text = “Better luck next time”

End If

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and justify your answer.

The control structure is an if statement that returns a message based on the value of the variable intScore.

(b) Describe step by step how this code will be executed and what will be displayed to the user for each of the following values of intScore: 99, 100, and 101.

For 99, the message displayed on the screen will be “Better luck next time” because 99 is less than 100.

For 100, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e. 100 =100 evaluates to true.

For 101, the message will be “Great job” as the value is included in the scoop on the variable intScore. i.e 101 >100 evaluates to true.

(c) Rewrite this code snippet so that it still produces the same results, but changing the condition in the first line from intScore >= 100 to intScore < 100. (Points : 30)

Question 3. 3. (TCO 6) Consider the following code snippet:

Dim intTotal As Integer = 0

For intNum As Integer = 1 To 5

intTotal += intNum

Next intNum

MessageBox.Show( intTotal.ToString() )

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points : 30)

Spellchecker

(a) What type of control structure is this? Be as specific as possible, and explain your answer.

The control structure is a “for” loop that controls the execution of the condition and incrementing the intNum variable by 1, until the value 5 is reached.

(b) Identify the counter variable and the accumulator variable in this loop. Explain your answer.

The counter variable is intNum as it is increased by one within the loop and used to control the loop while the accumulator variable is intTotal because it stores the incremented value.

(c) Describe step by step how this code will be executed and what value will be displayed in a message box to the user. (Points: 30)

Question 1. 1. (TCO 7) (a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Spellchecker

(a) Explain the difference between passing by value and passing by reference when passing variables to a Sub procedure or function.

(b) Describe a specific example of using a Sub procedure when you would pass a variable by value.

Function sum {

Result=12 ;}

Function sum {

a=10, b=12;

Sum=a+b ;}

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Spellchecker

(a) Describe at least two classes that you could use in this application and what each class would represent in the real world.

(b) Describe at least two properties of each class you identified in part (a) and identify the data type you would use for each property.

(c) Describe at least one method of each class you identified in part (a), giving for each the method name and the action performed by the method. (Points : 30)

Question 3. 3. (TCOs 8, 9, and 10) (a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

Spellchecker

(a) Explain the roles of primary and foreign keys in a relational database.

(b) In a two-tier architecture with a thin client and fat server, describe the functions performed by the client and by the server in processing a request by a user for information from a database.

(c) In a Visual Basic application that retrieves data from a database, describe the role of a TableAdapter object. (Points : 30)

#BIS 311 FINAL EXAMINATION ANSWERS

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lewiskdavid90 · 8 years ago

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