GUI之3种布局管理器

1、流式布局

package day14;

 

import java.awt.*;

 

public class AwtDemo4 {

    public static void main(String[] args) {

        Frame frame = new Frame();

        //组件按钮

        Button button1 = new Button("button11");

        Button button2 = new Button("button22");

        Button button3 = new Button("button33");

        //设置为流式布局

        frame.setLayout(new FlowLayout());//默认居中

//        frame.setLayout(new FlowLayout(FlowLayout.CENTER));

//        frame.setLayout(new FlowLayout(FlowLayout.LEFT));

//        frame.setLayout(new FlowLayout(FlowLayout.RIGHT));

        frame.setSize(200, 300);

        //将按钮添加上去

        frame.add(button1);

        frame.add(button2);

        frame.add(button3);

        frame.setVisible(true);

    }

} 

居中：

左对齐：

右对齐:

2、东南西北中

package day14;

 

import java.awt.*;

 

public class AwtDemo5 {

    public static void main(String[] args) {

        Frame frame = new Frame("EWSNCLyout");

 

        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(300, 300);

        frame.setVisible(true);

    }

}

执行结果：

3、表格布局Grid

package day14;

 

import java.awt.*;

 

public class AwtDeomo6 {

    public static void main(String[] args) {

        Frame frame = new Frame("GridLayoutTest");

 

        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(2, 3));

        frame.add(btn1);

        frame.add(btn2);

        frame.add(btn3);

        frame.add(btn4);

        frame.add(btn5);

        frame.add(btn6);

        frame.pack();

        frame.setVisible(true);

    }

}

执行结果：