2014/10/3

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         Frame f = new Frame("my first frame;");
10         f.setSize(190, 200);
11         f.setBackground(Color.blue);
12         f.setLocation(100, 200);                //设置窗口出现的位置，默认0，0
13         f.setResizable(true);                    //设置是否可以改变大小，默认可以
14         f.setVisible(true);                              //使窗口可见
15     }
16 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         w a = new w("wori", 199, 199, Color.BLACK, false, true);
10     }
11 }
12 
13 class w extends Frame
14 {
15     w(String n, int a, int b, Color c, boolean d, boolean e)
16     {
17         super(n);
18         setSize(a, b);
19         setBackground(c);
20         setResizable(d);
21         setVisible(e);
22     }
23 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         Frame f= new Frame("wori");
10         f.setLayout(null);
11         f.setBounds(0, 0, 400, 400);
12         f.setBackground(Color.GRAY);
13         Panel p = new Panel(null);        //不可以单独出现，必须嵌套进Frame里，可以互相嵌套
14         p.setBounds(50, 50, 100, 100);
15         p.setBackground(Color.cyan);
16         f.setResizable(true);
17         f.setVisible(true);
18         f.add(p);
19         
20     }
21 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         new w("wori", 100, 100, 200, 200, Color.black, Color.yellow);
10     }
11 }
12 
13 class w extends Frame
14 {
15     private Panel p = null;
16     w(String n, int a, int b, int c, int d, Color e, Color f)
17     {
18         super(n);
19         setBackground(e);
20         setBounds(a, b, c, d);
21         setLayout(null);
22         p = new Panel(null);
23         p.setBackground(f);
24         p.setBounds(a/2, b/2, c/2, d/2);
25         add(p);
26         setVisible(true);
27     }
28 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         Frame f = new Frame("wori");
10         f.setBounds(100, 100, 50, 50);
11         Button a = new Button("a");
12         Button b = new Button("b");
13         Button c = new Button("c");
14         f.setLayout(new FlowLayout(FlowLayout.LEFT, 20, 40));  //ppt
15         f.add(a);
16         f.add(b);
17         f.add(c);
18         f.setVisible(true);
19     }
20 }
21 
22 class w extends Frame
23 {
24     private Panel p = null;
25     w(String n, int a, int b, int c, int d, Color e, Color f)
26     {
27         super(n);
28         setBackground(e);
29         setBounds(a, b, c, d);
30         setLayout(null);
31         p = new Panel(null);
32         p.setBackground(f);
33         p.setBounds(a/2, b/2, c/2, d/2);
34         add(p);
35         setVisible(true);
36     }
37 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         Frame f = new Frame("wori");
10         f.setBounds(100, 100, 50, 50);
11         Button a = new Button("a");
12         Button b = new Button("b");
13         Button c = new Button("c");
14         Button d = new Button("d");
15         Button e = new Button("e");
16         f.add(a, BorderLayout.NORTH);           //Frame默认布局管理器
17         f.add(b, "West");                        //另一种方式
18         f.add(c, BorderLayout.EAST);
19         f.setVisible(true);
20         
21     }
22 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         Frame f = new Frame("wori");
10         Button a = new Button("a");
11         Button b = new Button("b");
12         Button c = new Button("c");
13         Button d = new Button("d");
14         Button e = new Button("e");
15         f.setLayout(new GridLayout(3, 2));    //将Frame分割成3行2列
16         f.add(a);           
17         f.add(b);                        
18         f.add(c);
19         f.add(d);
20         f.add(e);
21         f.pack();                //窗口将设置成包着按钮的大小
22         f.setVisible(true);
23         
24     }
25 }

 1 package hello;
 2 import java.awt.*;
 3 import java.io.*;
 4 import java.net.*;
 5 public class helloworld
 6 {
 7     public static void main(String[] args)throws Exception
 8     {
 9         Frame f = new Frame("wori");
10         f.setBounds(100, 100, 500, 500);
11         Button b = new Button("a");
12         Button c = new Button("c");
13         Panel p = new Panel();
14         Panel q = new Panel();
15         p.add(b, BorderLayout.CENTER);
16         q.add(c, BorderLayout.WEST);
17         p.add(q);
18         f.add(p);
19         f.setVisible(true);
20         
21     }
22 }