三種佈局管理器
阿新 • • 發佈:2021-07-18
一、FlowLayout 浮動佈局
package com.sheng.lesson01;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class TestFlowLayout {
public static void main(String[] args) {
Frame frame = new Frame();
//元件-按鈕
Button button1 = new Button("button1");
Button button2 = new Button("button2");
Button button3 = new Button("button3");
//
frame.setLayout(new FlowLayout(FlowLayout.LEFT));
frame.setSize(400,400);
frame.add(button1);
frame.add(button2);
frame.add(button3);
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
super.windowClosing(e);
System.exit(0);
}
});
}
}
二、BorderLayout 邊界佈局
package com.sheng.lesson01;
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(400,400);
frame.setVisible(true);
}
}
三、GridLayout 網格佈局
package com.sheng.lesson01;
import java.awt.*;
public class TestGridLayout {
public static void main(String[] args) {
Frame frame = new Frame("TestBorderLayout");
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();//自動佈局最優位置
frame.setVisible(true);
}
}
四、思考題