counter.java

这是我期末做的考试做的试题！

package jisanqi;

import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.awt.*;
import java.awt.event.*;
import  java.net.*;
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Counter extends JFrame {
  XYLayout xYLayout1 = new XYLayout();
  JTextField t = new JTextField();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JButton jButton4 = new JButton();
  JButton jButton5 = new JButton();
  JButton jButton7 = new JButton();
  JButton jButton8 = new JButton();
  JButton jButton9 = new JButton();
  JButton jButton10 = new JButton();
  JButton jButton11 = new JButton();
  JButton jButton12 = new JButton();
  JButton jButton13 = new JButton();
  JButton jButton14 = new JButton();
  JButton jButton15 = new JButton();
  JButton jButton16 = new JButton();
  JButton jButton17 = new JButton();
  JButton jButton18 = new JButton();
  JButton jButton19 = new JButton();
  JButton jButton20 = new JButton();
  JButton jButton21 = new JButton();
  JButton jButton22 = new JButton();
  JButton jButton23 = new JButton();
  JButton jButton24 = new JButton();
  JMenuBar jMenuBar1 = new JMenuBar();
  JMenu jMenu1 = new JMenu();
  JMenuItem jMenuItem1 = new JMenuItem();
  JMenu jMenu2 = new JMenu();
  JMenuItem jMenuItem2 = new JMenuItem();
  JMenuItem jMenuItem3 = new JMenuItem();
  JMenu jMenu3 = new JMenu();
  JMenuItem jMenuItem4 = new JMenuItem();
  public String a,b,c;
  public boolean falg=true;
  public Counter() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  public static void main(String[] args) {
    Counter counter = new Counter();
    counter.show() ;
    counter.pack() ;
  }
  private void jbInit() throws Exception {
    this.getContentPane().setLayout(xYLayout1);
    t.setForeground(Color.pink);
    t.setText("");
    t.setHorizontalAlignment(SwingConstants.RIGHT);
    jButton1.setText("8");
    jButton1.addActionListener(new Counter_jButton1_actionAdapter(this));
    jButton2.setText("7");
    jButton2.addActionListener(new Counter_jButton2_actionAdapter(this));
    jButton3.setText("9");
    jButton3.addActionListener(new Counter_jButton3_actionAdapter(this));
    jButton4.setText("/");
    jButton4.addActionListener(new Counter_jButton4_actionAdapter(this));
    jButton5.setText("backspace");
    jButton5.addActionListener(new Counter_jButton5_actionAdapter(this));
    jButton7.setText("4");
    jButton7.addActionListener(new Counter_jButton7_actionAdapter(this));
    jButton8.setText("5");
    jButton8.addActionListener(new Counter_jButton8_actionAdapter(this));
    jButton9.setText("6");
    jButton9.addActionListener(new Counter_jButton9_actionAdapter(this));
    jButton10.setText("*");
    jButton10.addActionListener(new Counter_jButton10_actionAdapter(this));
    jButton11.setText("CE");
    jButton11.addActionListener(new Counter_jButton11_actionAdapter(this));
    jButton12.setText("sin");
    jButton12.addActionListener(new Counter_jButton12_actionAdapter(this));
    jButton13.setText("1");
    jButton13.addActionListener(new Counter_jButton13_actionAdapter(this));
    jButton14.setText("2");
    jButton14.addActionListener(new Counter_jButton14_actionAdapter(this));
    jButton15.setText("3");
    jButton15.addActionListener(new Counter_jButton15_actionAdapter(this));
    jButton16.setText("-");
    jButton16.addActionListener(new Counter_jButton16_actionAdapter(this));
    jButton17.setText("cos");
    jButton17.addActionListener(new Counter_jButton17_actionAdapter(this));
    jButton18.setText("角度");
    jButton18.addActionListener(new Counter_jButton18_actionAdapter(this));
    jButton19.setText("0");
    jButton19.addActionListener(new Counter_jButton19_actionAdapter(this));
    jButton20.setText("+/-");
    jButton20.addActionListener(new Counter_jButton20_actionAdapter(this));
    jButton21.setText(".");
    jButton21.addActionListener(new Counter_jButton21_actionAdapter(this));
    jButton22.setText("+");
    jButton22.addActionListener(new Counter_jButton22_actionAdapter(this));
    jButton23.setText("=");
    jButton23.addActionListener(new Counter_jButton23_actionAdapter(this));
    jButton24.setText("弧度");
    jButton24.addActionListener(new Counter_jButton24_actionAdapter(this));
    jMenu1.setText("File");
    jMenuItem1.setText("Exit");
    jMenuItem1.addActionListener(new Counter_jMenuItem1_actionAdapter(this));
    jMenu2.setText("Edit");
    jMenuItem2.setText("Copy");
    jMenuItem2.addActionListener(new Counter_jMenuItem2_actionAdapter(this));
    jMenuItem3.setText("Paste");
    jMenuItem3.addActionListener(new Counter_jMenuItem3_actionAdapter(this));
    jMenu3.setText("Help");
    jMenuItem4.setText("About");
    jMenuItem4.addActionListener(new Counter_jMenuItem4_actionAdapter(this));
    this.setJMenuBar(jMenuBar1);
    this.getContentPane().add(t,                 new XYConstraints(8, 14, 380, 27));
    this.getContentPane().add(jButton24,        new XYConstraints(333, 218, 61, 41));
    this.getContentPane().add(jButton23,      new XYConstraints(268, 218, 56, 41));
    this.getContentPane().add(jButton22,      new XYConstraints(203, 218, 56, 41));
    this.getContentPane().add(jButton21,      new XYConstraints(138, 218, 56, 41));
    this.getContentPane().add(jButton20,       new XYConstraints(73, 218, 56, 41));
    this.getContentPane().add(jButton19,      new XYConstraints(8, 218, 56, 41));
    this.getContentPane().add(jButton13,       new XYConstraints(8, 160, 56, 41));
    this.getContentPane().add(jButton14,        new XYConstraints(73, 160, 56, 41));
    this.getContentPane().add(jButton15,       new XYConstraints(138, 160, 56, 41));
    this.getContentPane().add(jButton16,       new XYConstraints(203, 160, 56, 41));
    this.getContentPane().add(jButton17,       new XYConstraints(268, 160, 56, 41));
    this.getContentPane().add(jButton18,        new XYConstraints(333, 160, 60, 41));
    this.getContentPane().add(jButton11,         new XYConstraints(268, 103, 56, 41));
    this.getContentPane().add(jButton10,       new XYConstraints(203, 103, 56, 41));
    this.getContentPane().add(jButton9,       new XYConstraints(138, 103, 56, 41));
    this.getContentPane().add(jButton8,        new XYConstraints(73, 103, 56, 41));
    this.getContentPane().add(jButton7,      new XYConstraints(8, 103, 56, 41));
    this.getContentPane().add(jButton12,       new XYConstraints(333, 103, 58, 41));
    this.getContentPane().add(jButton2,      new XYConstraints(8, 45, 56, 41));
    this.getContentPane().add(jButton5,      new XYConstraints(268, 45, 117, 41));
    this.getContentPane().add(jButton4,     new XYConstraints(203, 45, 56, 41));
    this.getContentPane().add(jButton3,     new XYConstraints(138, 45, 56, 41));
    this.getContentPane().add(jButton1,       new XYConstraints(73, 45, 56, 41));
    jMenuBar1.add(jMenu1);
    jMenuBar1.add(jMenu2);
    jMenuBar1.add(jMenu3);
    jMenu1.add(jMenuItem1);
    jMenu2.add(jMenuItem2);
    jMenu2.add(jMenuItem3);
    jMenu3.add(jMenuItem4);
  }

  void jButton19_actionPerformed(ActionEvent e) {
    String str;
      str=t.getText() ;
      if(str.equals("0") )
        t.setText("0") ;
        else
          t.setText(str + "0") ;

  }

  void jButton13_actionPerformed(ActionEvent e) {
    String str;
       str=t.getText() ;
       if(str.equals("0") )
         t.setText("1") ;
         else
           t.setText(str + "1") ;

  }

  void jButton14_actionPerformed(ActionEvent e) {
    String str;
     str=t.getText() ;
     if(str.equals("0") )
       t.setText("2") ;
       else
         t.setText(str + "2") ;

  }

  void jButton15_actionPerformed(ActionEvent e) {
    String str;
     str=t.getText() ;
     if(str.equals("0") )
       t.setText("3") ;
       else
         t.setText(str + "3") ;

  }

  void jButton7_actionPerformed(ActionEvent e) {
    String str;
      str=t.getText() ;
      if(str.equals("0") )
        t.setText("4") ;
        else
          t.setText(str + "4") ;

  }

  void jButton8_actionPerformed(ActionEvent e) {
    String str;
      str=t.getText() ;
      if(str.equals("0") )
        t.setText("5") ;
        else
          t.setText(str + "5") ;

  }

  void jButton9_actionPerformed(ActionEvent e) {
    String str;
      str=t.getText() ;
      if(str.equals("0") )
        t.setText("6") ;
        else
          t.setText(str + "6") ;

  }

  void jButton2_actionPerformed(ActionEvent e) {
    String str;
    str=t.getText() ;
    if(str.equals("0") )
      t.setText("7") ;
      else
        t.setText(str + "7") ;

  }

  void jButton1_actionPerformed(ActionEvent e) {
    String str;
    str=t.getText() ;
    if(str.equals("0") )
    t.setText("8") ;
      else
        t.setText(str + "8") ;

  }

  void jButton3_actionPerformed(ActionEvent e) {
    String str;
      str=t.getText() ;
      if(str.equals("0") )
        t.setText("9") ;
        else
        t.setText(str + "9") ;

  }

  void jButton21_actionPerformed(ActionEvent e) {
   String str;
   str=t.getText() ;
    if(t.getText() .length() ==0)
      falg=false;
      for(int i=0;i<t.getText() .length();i++)
        if('.'==t.getText() .charAt(i) ){
          falg=false;
          break;
        }
    if(falg==true){
     t.setText(str+".") ;
    }
  }

  void jMenuItem1_actionPerformed(ActionEvent e) {
   System.exit(0) ;
  }

  void jMenuItem2_actionPerformed(ActionEvent e) {
    t.copy() ;
  }

  void jMenuItem3_actionPerformed(ActionEvent e) {
  t.paste() ;
  }

  void jButton22_actionPerformed(ActionEvent e) {
  //+
   a=t.getText() ;
   c=jButton22.getText() ;
   falg=true;
   t.setText("") ;
  }

  void jButton16_actionPerformed(ActionEvent e) {
  //-
  a=t.getText() ;
  c=jButton16.getText() ;
  falg=true;
  t.setText("") ;

  }

  void jButton10_actionPerformed(ActionEvent e) {
  //*
   a=t.getText() ;
  c=jButton10.getText() ;
  falg=true;
  t.setText("") ;

  }

  void jButton4_actionPerformed(ActionEvent e) {
   ///
   a=t.getText() ;
   c=jButton4.getText() ;
   falg=true;
   t.setText("") ;

  }

  void jButton23_actionPerformed(ActionEvent e) {
     double d ,f;
     String m,n;
     b=t.getText();
     if(c.equals("+") )
     {
      d=Double.parseDouble(a)+Double.parseDouble(b) ;
      m=Double.toString(d) ;
       t.setText(m) ;
      }
      if(c.equals("-") )
      {
      d=Double.parseDouble(a)-Double.parseDouble(b) ;
      m=Double.toString(d) ;
      t.setText(m) ;
      }
      if(c.equals("*") )
      {
      d=Double.parseDouble(a)*Double.parseDouble(b) ;
      m=Double.toString(d) ;
      t.setText(m) ;
      }
      if(c.equals("/") )
      {
      if(b.equals("0") )
      {

        return;
      }
      else{
       d=Double.parseDouble(a)/Double.parseDouble(b) ;
       m=Double.toString(d) ;
      }
      t.setText(m) ;
      }
  }

  void jButton11_actionPerformed(ActionEvent e) {
    t.setText("0") ;
  }

  void jButton5_actionPerformed(ActionEvent e) {
   String str;