CREATING A WINDOWED PROGRAM

How to  Create an AWT-based application.

Creating applets is the most commom use for java's AWT
But,it is possible to create stand-alone AWT based applications to do this

• simply create an instance of the window or windows you need inside main()
• e.g. create frame window with in main()

The example program is  shown below:

// Create an AWT-based application.
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
// Create a frame window.
public class AppWindow extends Frame 
{
String keymsg = "This is a test.";
String mousemsg = "";
int mouseX=30, mouseY=30;
public AppWindow() 
{
addKeyListener(new MyKeyAdapter(this));
addMouseListener(new MyMouseAdapter(this));
addWindowListener(new MyWindowAdapter());
}
public void paint(Graphics g) {
g.drawString(keymsg, 10, 40);
g.drawString(mousemsg, mouseX, mouseY);
}

CREATING A FRAME WINDOW IN AN APPLET

How to create a child frame window from within an applet...........

Creating a new frame window from within an applet is actually quite easy.

The following steps may be used to do it,

• Create a subclass of Frame
• Override any of the standard window methods,such as init(),start(),stop(),and paint().
• Implement the windowClosing() method of the windowlistener interface,calling setVisible(false)when the window is closed
• Once you have defined a Frame subclass,you can create an object of that class.But it will note be initially visible
• When created,the window is given a default height and width
• You can set the size of the window explicitly by calling the setSize() method

The example program is  shown below: