19 ( Guess the Number A pp ) <?xml:namespace prefix = o ns = \"urn:schemas-micro
ID: 3553659 • Letter: 1
Question
19 (Guess the Number App) <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /?>
Develop an app that generates a random number and prompts the user to guess the number. When the user clicks the New Game Button, the app chooses a number in the range 1 to 100 at random. The user enters guesses into the Guess: TextBox and clicks the Enter Button. If the guess is correct, the game ends, and the user can start a new game. If the guess is not correct, the app should indicate whether the guess is higher or lower than the correct number.
Use instance variable for a Random object and to store the randomly generated numbers in the range of 1 to 100. If a guess is correct, display Correct in the Result Label1, then disable the Enter Button and enable the New Game button. If a guess is higher than the correct answer, display Too high
Explanation / Answer
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http://uqu.edu.sa/files2/tiny_mce/plugins/filemanager/files/4290078/operation_research/c_sharp_programming/Instructors%20Manual%20for%20Simply%20C%20Sharp%20-1.pdf
// GuessNumber.cs
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace GuessNumber
{
/// <summary>
/// Summary description for FrmGuessNumber.
/// </summary>
public class FrmGuessNumber : System.Windows.Forms.Form
{
// Label to display directions
private System.Windows.Forms.Label lblQuestion;
Label and TextBox to input a number as a guess
private System.Windows.Forms.Label lblGuessNumber;
private System.Windows.Forms.TextBox txtGuessNumber;
// Labels to display result of guess
private System.Windows.Forms.Label lblResult;
private System.Windows.Forms.Label lblResultLabel;
// Button to enter a guess
private System.Windows.Forms.Button btnEnter;
// Button to begin a new game
private System.Windows.Forms.Button btnNewGame;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public FrmGuessNumber()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent
// call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
// Windows Form Designer generated code
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run( new FrmGuessNumber() );
}
// Load Form event
private void FrmGuessNumber_Load( object sender, System.EventArgs e )
{
m_intNumber = m_objRandom.Next( 1, 101 );
} // end FrmGuessNumber_Load
// handles Enter Button's Click event
private void btnEnter_Click( object sender, System.EventArgs e )
{
// check answer
if ( Int32.Parse( txtGuessNumber.Text ) == m_intNumber )
{
lblResult.Text = "Correct!";
btnEnter.Enabled = false;
btnNewGame.Enabled = true;
}
else if ( Int32.Parse( txtGuessNumber.Text ) > m_intNumber )
{
lblResult.Text = "Too high...";
}
else
{
lblResult.Text = "Too low...";
}
txtGuessNumber.Clear();
txtGuessNumber.Focus();
} // end method btnEnter_Click
// handles New Game Button's Click event
private void btnNewGame_Click( object sender, System.EventArgs e )
{
// generate new random number
m_intNumber = m_objRandom.Next( 1, 101 );
btnEnter.Enabled = true;
btnNewGame.Enabled = false;
lblResult.Text = ""; // clear result;
} // end method btnNewGame_Click
} // end class FrmGuessNumber
}
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