流式布局

import java.awt.*;
public class TestFlowLayout {
    public static void main(String[] args) {
        Frame frame = new Frame();
        //按钮组件
        Button button1 = new Button("button1");
        Button button2 = new Button("button2");
        Button button3 = new Button("button3");
        //设置为流式布局
        frame.setLayout(new FlowLayout());//默认居中
        //frame.setLayout(new FlowLayout(FlowLayout.LEFT));//居左
        //frame.setLayout(new FlowLayout(FlowLayout.RIGHT));//居右
        frame.setSize(200, 200);
        //添加按钮
        frame.add(button1);
        frame.add(button2);
        frame.add(button3);
        frame.setVisible(true);
    }
}

东西南北中

import java.awt.*;
public class TestBorderLayout {
    public static void main(String[] args) {
        Frame frame = new Frame("TestBorderLayout");
        Button east = new Button("East");
        Button west = new Button("West");
        Button south = new Button("South");
        Button north = new Button("North");
        Button center = new Button("Center");
        frame.add(east,BorderLayout.EAST);
        frame.add(west,BorderLayout.WEST);
        frame.add(south,BorderLayout.SOUTH);
        frame.add(north,BorderLayout.NORTH);
        frame.add(center,BorderLayout.CENTER);
        frame.setSize(200,200);
        frame.setVisible(true);
    }
}

表格布局

package gui;
import java.awt.*;
public class TestGridLayout {
    public static void main(String[] args) {
        Frame frame = new Frame("TestGridLayout");
        Button btn1 = new Button("btn1");
        Button btn2 = new Button("btn2");
        Button btn3 = new Button("btn3");
        Button btn4 = new Button("btn4");
        Button btn5 = new Button("btn5");
        Button btn6 = new Button("btn6");
        frame.setLayout(new GridLayout(3, 2));
        frame.add(btn1);
        frame.add(btn2);
        frame.add(btn3);
        frame.add(btn4);
        frame.add(btn5);
        frame.add(btn6);
        frame.pack();
        frame.setVisible(true);
    }
}