package com.guoguo.lesson01;
import sun.font.TrueTypeFont;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
//panel可以看成一个空间,不能单独存在
public class Testpanel {
public static void main(String[] args) {
Frame frame = new Frame();
//布局的概念
Panel panel = new Panel();
//设置布局
frame.setLayout(null);
//坐标
frame.setBounds(300,300,500,500);
frame.setBackground(new Color(2, 232, 191));
//panel也可设置,相对于frame
//panel坐标设置
panel.setBounds(50,50,400,400);
panel.setBackground(new Color(177,17,71));
frame.add(panel);
frame.setVisible(true);
//监听事件,监听窗口关闭System.exit()
//适配器模式
frame.addWindowListener(new WindowAdapter() {
//窗口关闭,需要做的事情
@Override
public void windowClosing(WindowEvent e) {
//结束程序
System.exit(0);
}
});
}
}
流式布局、东西南北中、表格布局,java中new用alt enter
流式布局
package com.guoguo.lesson01;
import java.awt.*;
public class TestFlowLayerout {
public static void main(String[] args) {
Frame frame = new Frame();
//组件;按钮
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.LEADING));//默认居中
frame.setSize(200,200);
frame.add(button1);
frame.add(button2);
frame.add(button3);
frame.setVisible(true);
}
东西南北中
package com.guoguo.lesson01;
import java.awt.*;
public class TestBorderlayout {
public static void main(String[] args) {
Frame frame = new Frame();
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(500,200);
frame.setVisible(true);
}
}
表格grid,包括作业;
package com.guoguo.lesson01;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class Exdemo {
public static void main(String[] args) {
//总frame窗口
Frame frame = new Frame();
frame.setSize(400,300);
frame.setLocation(200,300);
frame.setBackground(Color.BLACK);
frame.setVisible(true);
frame.setLayout(new GridLayout(2,1));
//四个面板
//上面
Panel p1 = new Panel(new BorderLayout());
Panel p2 = new Panel(new GridLayout(2,1));
Panel p3 = new Panel(new BorderLayout());
Panel p4 = new Panel(new GridLayout(2,2));
p1.add(new Button("East-1"),BorderLayout.EAST);
p1.add(new Button("West-1"),BorderLayout.WEST);
p2.add(new Button("P2-BTN-1"));
p2.add(new Button("P2-BTN-2"));
p1.add(p2,BorderLayout.CENTER);
//下面
p3.add(new Button("East-2"),BorderLayout.EAST);
p3.add(new Button("West-2"),BorderLayout.WEST);
for (int i = 0; i < 4; i++) {
p4.add(new Button("for-"+i));
}
p3.add(p4,BorderLayout.CENTER);
frame.add(p1);
frame.add(p3);
frame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}