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package test_11;

import java.awt.*;
public class GridBagLayoutDemo extends Frame {
public static void main(String[] args){
Frame gd = new Frame("GridBagLayoutDemo");
gd.setSize(300,200);//设置窗口的大小
//使用类GridBagConstriants
GridBagConstraints gbc=new GridBagConstraints();
//设定外观管理器为GridBagLayout外观管理器
gd.setLayout(new GridBagLayout());
//所有的按钮都会把分配的剩余空间填满
gbc.fill=GridBagConstraints.BOTH;
gbc.gridwidth=1;//设置第一个按钮的大小
gbc.gridheight=1;//
Button Button1=new Button("东"); ((GridBagLayout)gd.getLayout()).setConstraints(Button1,gbc);
gd.add(Button1);
//第二个按钮填满整行空间
gbc.gridwidth=GridBagConstraints.REMAINDER;
Button Button2=new Button("西"); ((GridBagLayout)gd.getLayout()).setConstraints(Button2,gbc);
gd.add(Button2);
gbc.gridheight=4;//设置第三个按钮的大小
gbc.gridwidth=1;
Button Button3=new Button("南"); ((GridBagLayout)gd.getLayout()).setConstraints(Button3,gbc);
gd.add(Button3);
gbc.gridheight=2;//设置第四个按钮的大小
gbc.gridwidth=1;//GridBagConstraints.REMAINDER;
Button Button4=new Button("北"); ((GridBagLayout)gd.getLayout()).setConstraints(Button4,gbc);
gd.add(Button4);
gbc.gridwidth=GridBagConstraints.REMAINDER;
Button Button5=new Button("中"); ((GridBagLayout)gd.getLayout()).setConstraints(Button5,gbc);
gd.add(Button5);
gbc.insets=new Insets(5,6,7,8);//设置第五个按钮的位置
Button Button6=new Button("GridBagLayoutDemo");
((GridBagLayout)gd.getLayout()).setConstraints(Button6,gbc);
gd.add(Button6);
gd.setVisible(true);
}
}