用java编写计算器代码答:import java.awt.*;import java.awt.event.*;import javax.swing.*;public class 计算器 extends JFrame implements ActionListener{ private JPanel jPanel1,jPanel2;private JTextField resultField;private JButton s1,s2,s3,s4,s5,s6,s7,s8,s9,s0,b1,b2,b3,b4,f1,f2;private boolean end,...