Frame

In Java, Frame is a class (in awt package) that can be used to create a top-level window in a graphical user interface program. The window that is the instance of the Frame class can have title, border, and menu bar. This contrasts to a window created by the Applet class.

Frame constructors:
-Frame()
-Frame(String title)

Its useful methods:
-add(Component c)
-setExtendedState(int state)
-setLocation(int x,int y)
-setResizable(boolean resizable)
-setSize(int width,int height)
-setSize(Dimension ds)
-setTitle(String title)
-setVisible(boolean visible)

Example:

import java.awt.Frame;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

class WindowShow extends Frame{
WindowShow(){
//setExtendedState(Frame.MAXIMIZED_BOTH);
setSize(400,300); //set window size
setTitle("Form"); //set window title
setVisible(true); //make sure the window is visible
Image iconimage=Toolkit.getDefaultToolkit().getImage("d:/myprogram/file-mover.png");
setIconImage(iconimage);//set the icon of window to an image
setLocation(300,300); //display the window at point (300,300)

//let the window close when its close-icon is clicked
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});

}
}
public class AwtTest {
public static void main(String[] args){
new WindowShow();

}
}