课堂练习

 

public class demo05 {
    public static void main(String[] args){
        Frame a=new Frame("课堂练习");
        a.setVisible(true);
        a.setBounds(400,400,500,500);
        a.setLayout(new GridLayout(2,1));
        Panel b=new Panel(new BorderLayout());
        Panel c=new Panel(new BorderLayout());
        a.add(b,BorderLayout.NORTH);
        a.add(c,BorderLayout.SOUTH);

        Button button1=new Button("Button1");
        Button button2=new Button("Button2");
        Button button3=new Button("Button3");
        Button button4=new Button("Button4");
        Button button5=new Button("Button5");
        Button button6=new Button("Button6");
        Button button7=new Button("Button7");
        Button button8=new Button("Button8");
        Button button9=new Button("Button9");
        Button button10=new Button("Button10");
        Panel d=new Panel(new GridLayout(2,1));
        d.add(button3);
        d.add(button4);

        b.add(button1,BorderLayout.WEST);
        b.add(button2,BorderLayout.EAST);
        b.add(d,BorderLayout.CENTER);

        Panel e=new Panel();
        e.setLayout(new GridLayout(2,2));
        e.add(button7);
        e.add(button8);
        e.add(button9);;
        e.add(button10);

        c.add(button5,BorderLayout.WEST);
        c.add(button6,BorderLayout.EAST);
        c.add(e,BorderLayout.CENTER);
    }
}