Sixth Training

1, a shown in FIG production interface (using FlowLayout layout), does not achieve required functions.

 

. 1  Package sixth training;
 2  
. 3  Import in javax.swing *. ;
 . 4  
. 5  public  class of MyFrame {
 . 6      the JFrame F;
 . 7      the JLabel L1, L2, L3, L4, La, LB, LC, LD;
 . 8      the JPanel P;
 . 9      the JTextField T1, T2, T3, TA, TB, TC;
 10      the JButton B1, B2;
 . 11      public of MyFrame () {
 12 is          
13 is          F = new new the JFrame ();
 14          L1 = new new the JLabel ( "current time:" );
 15          P = new new the JPanel ();
 16         L2 = new new the JLabel ( "when" );
 . 17          P = new new the JPanel ();
 18 is          L3 = new new the JLabel ( "points" );
 . 19          P = new new the JPanel ();
 20 is          L4 = new new the JLabel ( "second" );
 21 is          T1 = new new the JTextField (. 4 );
 22 is          T2 = new new the JTextField (. 4 );
 23 is          T3 = new new the JTextField (. 4 );
 24          
25          La = new new the JLabel ( "alarm time:" );
 26         p=new JPanel();
27         lb=new JLabel("时");
28         p=new JPanel();
29         lc=new JLabel("分");
30         p=new JPanel();
31         ld=new JLabel("秒");
32         ta=new JTextField(4);
33         tb=new JTextField(4);
34         tc=new JTextField(4);
35         
36         b1=new JButton("开");
37         b2=new JButton("关");
38         
39         p.add(l1);
40         p.add(t1);
41         f.add(p);
42         p.add(l2);
43         p.add(t2);
44         f.add(p);
45         p.add(l3);
46         p.add(t3);
47         p.add(l4);
48         f.add(p);
49         
50         
51         p.add(la);
52         p.add(ta);
53         f.add(p);
54         p.add(lb);
55         p.add(tb);
56         f.add(p);
57         p.add(lc);
58         p.add(tc);
59         p.add(ld);
60         f.add(p);
61         
62         p.add(b1);
63         p.add(b2);
64         
65         f.setSize(300,200);
66         f.setVisible(true);
67         
68     }
69     public static void main(String[] args){
70         new MyFrame();
71     }
72 }

 

2 designing a label, a line of text and button login interface (using GridLayout layout). as the picture shows.

 

 1 package 第六次实训;
 2 import java.awt.GridLayout;
 3 
 4 import javax.swing.*;
 5 
 6 public class aaa{
 7     JFrame f;
 8     JLabel l1,l2;
 9     JPanel p;
10     JTextField t1,t2;
11     JButton b1,b2;
12     public aaa(){
13         
14         f=new JFrame();
15         l1=new JLabel("用户名：");
16         p=new JPanel();
17         t1=new JTextField(3);
18         
19         l2=new JLabel("口令：");
20         p=new JPanel();
21         t2=new JTextField(3);
22         
23         b1=new JButton("确定");
24         b2=new JButton("取消");
25         
26         p.setLayout(new GridLayout(3,2));
27         
28         p.add(l1);
29         p.add(t1);
30         f.add(p);
31         
32         p.add(l2);
33         p.add(t2);
34         f.add(p);
35         
36         p.add(b1);
37         p.add(b2);
38         
39         f.setSize(250,150);
40         f.setVisible(true);
41         
42     }
43     public static void main(String[] args){
44         new aaa();
45     }
46 }