可视化

package keshi;

import java.awt.*;

public class new01 {
    public static void main(String[] args) {
        Frame f=new Frame("BorderLayout 布局");
        f.setSize(400,300);
        f.setLayout(new BorderLayout());
        Button btn01=new Button("东");
        Button btn02=new Button("西");
        Button btn03=new Button("南");
        Button btn04=new Button("北");
        Button btn05=new Button("中");
        f.add(btn01,BorderLayout.EAST);
        f.add(btn02,BorderLayout.WEST);
        f.add(btn03,BorderLayout.SOUTH);
        f.add(btn04,BorderLayout.NORTH);
        f.add(btn05,BorderLayout.CENTER);
        f.setVisible(true);
    }
}