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PracticalNo10 1

This document describes a Java program that demonstrates the status of key events in an Applet window, including KeyPressed, KeyReleased, and KeyTyped. The program uses a KeyListener to update a label with the name of the key pressed or released. The main class creates a frame with a text area to capture key events and display their status.

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Ashish Mavani
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18 views2 pages

PracticalNo10 1

This document describes a Java program that demonstrates the status of key events in an Applet window, including KeyPressed, KeyReleased, and KeyTyped. The program uses a KeyListener to update a label with the name of the key pressed or released. The main class creates a frame with a text area to capture key events and display their status.

Uploaded by

Ashish Mavani
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Practical No.

: 10

Practical Name: Write a program to demonstrate status of key on Applet window such as
KeyPressed, KeyReleased, KeyUp, KeyDown.

Roll No.: 47

Student Name: Mavani Ashish Shantilal

Program:
import java.awt.*;
import java.awt.event.*;

class practical10_1 extends Frame implements KeyListener


{
Label l1;
TextArea t1;
practical10_1()
{
setTitle("KeyListener");
setVisible(true);
setSize(450, 250);
setLayout(null);
l1 = new Label();
l1.setBounds(80, 50, 150, 20);
t1 = new TextArea();
t1.setBounds(80, 80, 300, 125);
t1.addKeyListener(this);
add(l1);
add(t1);
}
public void keyPressed(KeyEvent e)
{
int keyCode = e.getKeyCode();
String keyName = (keyCode == KeyEvent.VK_F1) ? "F1 Key Pressed" :
(keyCode == KeyEvent.VK_F2) ? "F2 Key Pressed" :
(keyCode == KeyEvent.VK_F3) ? "F3 Key Pressed" :
(keyCode == KeyEvent.VK_F4) ? "F4 Key Pressed" :
(keyCode == KeyEvent.VK_F5) ? "F5 Key Pressed" :
(keyCode == KeyEvent.VK_F6) ? "F6 Key Pressed" :
(keyCode == KeyEvent.VK_F7) ? "F7 Key Pressed" :
(keyCode == KeyEvent.VK_F8) ? "F8 Key Pressed" :
(keyCode == KeyEvent.VK_F9) ? "F9 Key Pressed" :
(keyCode == KeyEvent.VK_F10) ? "F10 Key Pressed" :
(keyCode == KeyEvent.VK_F11) ? "F11 Key Pressed" :
(keyCode == KeyEvent.VK_F12) ? "F12 Key Pressed" :
(keyCode == KeyEvent.VK_UP) ? "Up Arrow Pressed" :
(keyCode == KeyEvent.VK_DOWN) ? "Down Arrow Pressed" :
(keyCode == KeyEvent.VK_LEFT) ? "Left Arrow Pressed" :
(keyCode == KeyEvent.VK_RIGHT) ? "Right Arrow Pressed" :
"Key Pressed";
l1.setText(keyName);
}
public void keyReleased(KeyEvent e)
{
l1.setText("Key Released");
}
public void keyTyped(KeyEvent e)
{
l1.setText("Key Typed");
}
public static void main(String[] args)
{
practical10_1 pr10_1 = new practical10_1();
}
}

Output:

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