nestedcontainer.java

java程序设计源代码

import java.awt.*;
public class NestedContainer {
	public static void main(String args[]) {
		Frame f = new Frame("Nested Container");
		Label b0 = new Label( "Display Area");
		Panel p = new Panel();
		
		p.setLayout(new GridLayout(2,2));
		Button b1 = new Button("1");
		Button b2 = new Button("2");
		Button b3 = new Button("3");
		Button b4 = new Button("4");
		p.add(b1); 		p.add(b2);
		p.add(b3);		p.add(b4);
		
		f.add(b0, BorderLayout.NORTH);
		f.add(p, BorderLayout.CENTER);
		
		f.pack(); 
		f.setVisible(true);    
	}
}