AWT

java的图形化界面之一,虽然被淘汰了,但是思想很重要。

最基本的窗口输出:(没有监听事件)

awt逻辑:

把组件(Components)放在面板(panel)上,把面板放在窗口上,通过设置面板和窗口的布局(流式布局(FlowLayout)、东西南北中布局(BorderLayout)、表格布局(GridLayout))实现各种各样的输出窗口。

 1  package com.yycome.awt_1;
 2  3  import java.awt.*;
 4  import java.awt.event.WindowAdapter;
 5  import java.awt.event.WindowEvent;
 6  7  //布局是可以嵌套的,下面是一个小栗子
 8  public class LayoutDemo {
 9      public static void main(String[] args) {
10          //创建窗口
11          Frame frame = new Frame("LayoutDemo");
12          frame.setVisible(true);
13          frame.setSize(500,400);
14          frame.setLocation(200,100);
15          frame.setBackground(Color.gray);
16          //设置窗口布局
17          frame.setLayout(new GridLayout(2,1));
18          //创建4个panel
19          Panel panel1 = new Panel();
20          Panel panel2 = new Panel();
21          Panel panel3 = new Panel();
22          Panel panel4 = new Panel();
23          //设置panel布局
24          panel1.setLayout(new GridLayout(2,1));
25          panel2.setLayout(new BorderLayout());
26          panel4.setLayout(new BorderLayout());
27          panel3.setLayout(new GridLayout(2,2));
28          //设置panel尺寸(可省略)
29          panel2.setSize(500,200);
30          panel4.setSize(500,200);
31          panel1.setSize(400,200);
32          panel3.setSize(400,200);
33          //添加布局,从小到大,用了简便的创建按钮方式
34          panel1.add(new Button("button1"));
35          panel1.add(new Button("button2"));
36          panel2.add(new Button("button3"),BorderLayout.EAST);
37          panel2.add(new Button("button4"),BorderLayout.WEST);
38          panel2.add(panel1,BorderLayout.CENTER);
39          panel3.add(new Button("button4"));
40          panel3.add(new Button("button5"));
41          panel3.add(new Button("button6"));
42          panel3.add(new Button("button7"));
43          panel4.add(new Button("button8"),BorderLayout.EAST);
44          panel4.add(new Button("button9"),BorderLayout.WEST);
45          panel4.add(panel3,BorderLayout.CENTER);
46 47          frame.add(panel2);
48          frame.add(panel4);
49 50          //添加监听,关闭窗口
51          frame.addWindowListener(new WindowAdapter() {
52              @Override
53              public void windowClosing(WindowEvent e) {
54                  System.exit(0);
55              }
56          });
57 58      }
59  }

 

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