第四十次发博不知道用什么标题好

一个超级简单的可以使用的

 1 package Test;
 2 import java.awt.*;
 3 import java.awt.event.ActionEvent;
 4 import java.awt.event.ActionListener;
 5 
 6 import javax.swing.*;
 7 
 8 public class Count {
 9 JFrame f;
10 JPanel p;
11 JTextField tf1,tf2,tf3;
12 JLabel l1,l2,l3,l4;
13 JButton b1,b2;
14 
15 public Count() {
16     f = new JFrame();
17     p = new JPanel();
18     tf1 = new JTextField(10);
19     tf2 = new JTextField(10);
20     tf3 = new JTextField(10);
21     
22     l1 = new JLabel("加数1");
23     l2 = new JLabel("加数2");
24     l3 = new JLabel();
25     l4 = new JLabel();
26     b1 = new JButton("求和");
27     b2 = new JButton("清除");
28     
29     f.setVisible(true);
30     f.setBounds(550, 200, 300, 300);
31     p.setLayout(new GridLayout(3,3));
32     f.add(p);
33     
34     p.add(l1);
35     p.add(tf1);
36     p.add(l3);
37     
38     p.add(l2);
39     p.add(tf2);
40     p.add(l4);
41     
42     p.add(b1);
43     p.add(tf3);
44     p.add(b2);
45 
46     b1.addActionListener(new ActionListener() {
47         
48         @Override
49         public void actionPerformed(ActionEvent e) {
50             int a = Integer.parseInt(tf1.getText());
51             int b = Integer.parseInt(tf2.getText());
52             tf3.setText(a+b+"");
53             
54             // TODO Auto-generated method stub
55             
56         }
57     });
58     b2.addActionListener(new ActionListener() {
59         
60         @Override
61         public void actionPerformed(ActionEvent e) {
62             tf1.setText(null);
63             tf2.setText(null);
64             tf3.setText(null);
65             
66             // TODO Auto-generated method stub
67             
68         }
69     });
70 }
71 
72     public static void main(String[] args) {
73         new Count();
74         // TODO Auto-generated method stub
75 
76     }
77 
78 }

 1 package Test;
 2 import java.awt.*;
 3 import java.awt.event.ActionEvent;
 4 import java.awt.event.ActionListener;
 5 
 6 import javax.swing.*;
 7 
 8 public class Count {
 9 JFrame f;
10 JPanel p;
11 JTextField tf1,tf2,tf3;
12 JLabel l1,l2,l3,l4;
13 JButton b1,b2;
14 
15 public Count() {
16     f = new JFrame();
17     p = new JPanel();
18     tf1 = new JTextField(10);
19     tf2 = new JTextField(10);
20     tf3 = new JTextField(10);
21     
22     l1 = new JLabel("加数1");
23     l2 = new JLabel("加数2");
24     l3 = new JLabel();
25     l4 = new JLabel();
26     b1 = new JButton("求和");
27     b2 = new JButton("清除");
28     
29     f.setVisible(true);
30     f.setBounds(550, 200, 300, 300);
31     p.setLayout(new GridLayout(3,3));
32     f.add(p);
33     
34     p.add(l1);
35     p.add(tf1);
36     p.add(l3);
37     
38     p.add(l2);
39     p.add(tf2);
40     p.add(l4);
41     
42     p.add(b1);
43     p.add(tf3);
44     p.add(b2);
45 
46     b1.addActionListener(new ActionListener() {
47         
48         @Override
49         public void actionPerformed(ActionEvent e) {
50             int a = Integer.parseInt(tf1.getText());
51             int b = Integer.parseInt(tf2.getText());
52             tf3.setText(a+b+"");
53             
54             // TODO Auto-generated method stub
55             
56         }
57     });
58     b2.addActionListener(new ActionListener() {
59         
60         @Override
61         public void actionPerformed(ActionEvent e) {
62             tf1.setText(null);
63             tf2.setText(null);
64             tf3.setText(null);
65             
66             // TODO Auto-generated method stub
67             
68         }
69     });
70 }
71 
72     public static void main(String[] args) {
73         new Count();
74         // TODO Auto-generated method stub
75 
76     }
77 
78 }

计算器

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原文地址：https://www.cnblogs.com/shi-yuan/p/10965489.html