Microsoft Visual C#
7th Edition
ISBN: 9781337102100
Author: Joyce, Farrell.
Publisher: Cengage Learning,
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Textbook Question
Chapter 3, Problem 11RQ
The button1_Click() method that is generated by the IDE ___________.
- has a private access specifier
- is nonstatic
- contains parameters between its parentheses
- all of the above
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the progam is :
Public Class Form1Public Sub btnCalculate_Click(sender As Object, e As EventArgs) Handles btnCalculate.Click'Declare variablesDim vHeight As DecimalDim vWeight As DecimalDim vBMI As Decimal
'get and test values entered by user'tests user has entered a value for heightIf txbHeight.Text = “” Or txbWeight.Text = “” Then'Call error message sub procedureErrorMessage(“Please enter your height and weight in the box!”)Exit SubEnd If
'Calculate Body Mass initialize variablesvWeight = Val(txbWeight.Text)vHeight = Val(txbHeight.Text)'Calculate Body Mass Index ^ is for exponentsvBMI = vWeight / (vHeight ^ 2)
'Output message to Label
txbResult.Text = vBMI
Call ErrorMessage()End Sub
Public Sub ErrorMessage() 'public sub for error msg box
End Sub
Public Sub ErrorMessage(errormsg As String) ' parameter for error messageMessageBox.Show(errormsg) 'to show the message boxEnd Sub
Private Sub btnClose_Click(sender As Object, e As EventArgs) Handles btnClose.Click 'close buttonClose() '…
Create an application named SalesTransactionDemo that declares several SalesTransaction objects and displays their values and their sum.
The SalesTransaction class contains the following fields:
Name - The salesperson's name (as a string)
salesAmount - The sales amount ( as a double)
commission - The commission (as a double)
RATE - A readonly field that stores the commission rate (as a double). Define a getRate() accessor method that returns the RATE
Include three constructors for the class. One constructor accepts values for the name, sales amount, and rate, and when the sales value is set, the constructor computes the commission as sales value times commission rate.
The second constructor accepts a name and sales amount, but sets the commission rate to 0.
The third constructor accepts a name and sets all the other fields to 0.
An overloaded + operatoradds the sales values for two SalesTransaction objects and returns a new SalesTransaction object.
In order to prepend the $ to…
This is the question I am stuck on -
Radio station KJAVA wants a class to keep track of recordings it plays. Create a class named Recording that contains fields to hold methods for setting and getting a Recording’s title, artist, and playing time in seconds.
Write an application that instantiates five Recording objects and prompts the user for values for the data fields. Then prompt the user to enter which field the Recordings should be sorted by—(S)ong title, (A)rtist, or playing (T)ime. Perform the requested sort procedure, and display the Recording objects.
This is what I have so far -
public class Recording {
private String song;
private String artist;
private int playTime;
public void setSong(String title) {
this.song = title;
}
public void setArtist(String name) {
this.artist = name;
}
public void setPlayTime(int time) {
this.playTime = time;
}
public String getSong() {
return song;
}
public String…
Chapter 3 Solutions
Microsoft Visual C#
Ch. 3 - Which of the following is a GUI object that...Ch. 3 - Prob. 2RQCh. 3 - In the IDE, the area where you visually construct...Ch. 3 - Prob. 4RQCh. 3 - The Form class has ____________ properties. a....Ch. 3 - Prob. 6RQCh. 3 - Which of the following is a legal Form Name...Ch. 3 - Which of the following is a legal Form Text...Ch. 3 - Which of the following does not appear in the IDEs...Ch. 3 - After you have dragged a Button onto a Form in the...
Ch. 3 - The button1_Click() method that is generated by...Ch. 3 - A(n) _____________ is generated when a user...Ch. 3 - Prob. 13RQCh. 3 - Prob. 14RQCh. 3 - _____________ are controls through which a user...Ch. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - Prob. 18RQCh. 3 - If you inadvertently create a Click() method for a...Ch. 3 - Prob. 20RQCh. 3 - Write a GUI program named InchesToCentimetersGUl...Ch. 3 - Write a GUI program named ProjectedRaisesGUI that...Ch. 3 - Prob. 3ECh. 3 - Write a GUI program named Eggs InteractiveGUl that...Ch. 3 - Write a GUI program named MakeChangeGUl that...Ch. 3 - Write a GUI program named TestsInteractiveGUI that...Ch. 3 - Create an enumeration named Month that holds...Ch. 3 - Pig Latin is a nonsense language. To create a word...Ch. 3 - Each of the following projects in the Chapter.03...Ch. 3 - In Chapter 2, you created a program for the...Ch. 3 - In Chapter 2, you created a program for Marshalls...
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