Character Casting Program plan: Create new Windows Forms Application. Design the form by placing the labels, textbox, and button and then change their name and properties. Inside the “Display” button, Declare required variables. Get the “ID” from the user. Check the “ID”. Print the message. Otherwise, print the corresponding message. Inside the “Clear” button, Clear the form. Inside the “Exit” button, Close the form.

Question

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Answer 1

Question

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

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Exercise 1 Function and Structure [30 pts] Please debug the following program and answer the following questions. There is a cycle in a linked list if some node in the list can be reached again by continuously following the next pointer. #include typedef struct node { int value; struct node *next; } node; int 11_has_cycle (node *first) if (first == node *head = { NULL) return 0; first; while (head->next != NULL) { } if (head first) { return 1; } head = head->next; return 0; void test ll_has_cycle () { int i; node nodes [6]; for (i = 0; i < 6; i++) { nodes [i] .next = NULL; nodes [i].value = i; } nodes [0] .next = &nodes [1]; nodes [1] .next = &nodes [2]; nodes [2] .next = &nodes [3]; nodes [3] .next nodes [4] .next &nodes [4]; NULL; nodes [5] .next = &nodes [0]; printf("1. Checking first list for cycles. \n Function 11_has_cycle says it has s cycle\n\n", 11_has_cycle (&nodes [0])?"a":"no"); printf("2. Checking length-zero list for cycles. \n Function 11_has_cycle says it has %s…

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Answer 2

Question

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

Answer 6

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

Answer 7

Chapter 4.LA, Problem 19E

a.

Program Plan Intro

Character Casting

Program plan:

Create new Windows Forms Application.

Design the form by placing the labels, textbox, and button and then change their name and properties.

Inside the “Display” button,

Declare required variables.

Get the “ID” from the user.

Check the “ID”.

Print the message.

Otherwise, print the corresponding message.

Inside the “Clear” button,

Clear the form.

Inside the “Exit” button,

Close the form.

Answer 8

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

Answer 9

b.

Explanation of Solution

Program:

'Definition of frmMain

Public Class frmMain

'Definition of button display

Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click

'Declare the ID as string

Dim ID As String

'Get the ID

ID = txtId.Text

'Check the ID

If ID = "AB12" OrElse ID = "XY59" OrElse ID = "TV45" Then

'Print the message

lblMsg.Text = "Valid ID"

Else

'Otherwise, print the message

lblMsg...

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

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Answer 13

Ch. 4.LA - Prob. 1RQ Ch. 4.LA - Prob. 2RQ Ch. 4.LA - Prob. 3RQ Ch. 4.LA - The six logical operators are listed below....Ch. 4.LA - An expression can contain arithmetic, comparison,...Ch. 4.LA - The expression 6 12 OrElse 4 5 evaluates to...Ch. 4.LA - Prob. 7RQ Ch. 4.LA - Prob. 8RQ Ch. 4.LA - Prob. 9RQ Ch. 4.LA - Prob. 10RQ

Solution Summary: The author describes the Character Casting program, which creates a new Windows Forms Application by placing labels, box, and button.

Explanation of Solution

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Chapter 4 Solutions