calculatorframe.java

java实现的计算器 java实现的计算器

package Cursor;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

/**
 * <p>Title:  calculatordemo</p>
 * <p>Description: This is a calculatordemo</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author 刘勋华
 * @version 1.0
 */

public class calculatorFrame extends JFrame {
  JPanel contentPane;
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JButton jButton4 = new JButton();
  JButton jButton5 = new JButton();
  JButton jButton6 = 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();
  double  startnum;
  double  endnum;
  double  midnum;
  int flag=0;
  int  point=0;
  About aboutdlg=new About();
  String ope,str;
  boolean  isresult=false;
  String strValue=null;
  JTextArea jTextArea1 = new JTextArea();
  JButton jButton19 = new JButton();
  JButton jButton20 = new JButton();
  JButton jButton21 = new JButton();
  JButton jButton22 = new JButton();
  JButton jButton23 = new JButton();
  JButton jButton24 = new JButton();
  JButton jButton26 = new JButton();
  JButton jButton27 = new JButton();
  JButton jButton25 = new JButton();
  JButton jButton29 = new JButton();
  JButton jButton30 = new JButton();
  JButton jButton31 = new JButton();
  JButton jButton32 = new JButton();
  JButton jButton33 = new JButton();
  JLabel jLabel1 = new JLabel();

  //Construct the frame
  public calculatorFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    jButton1.setBackground(Color.white);
    jButton1.setBounds(new Rectangle(200, 205, 71, 25));
    jButton1.setForeground(Color.blue);
    jButton1.setToolTipText("");
    jButton1.setText("％");
    jButton1.addActionListener(new calculatorFrame_jButton1_actionAdapter(this));
    contentPane.setLayout(null);
    this.getContentPane().setBackground(SystemColor.control);
    this.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
    this.setFont(new java.awt.Font("Dialog", 0, 12));
    this.setLocale(java.util.Locale.getDefault());
    this.setSize(new Dimension(490, 354));
    this.setState(Frame.NORMAL);
    this.setFocusable(true);
    this.addKeyListener(new calculatorFrame_this_keyAdapter(this));
    this.setFocusableWindowState(true);

    jButton2.setBackground(Color.white);
    jButton2.setBounds(new Rectangle(200, 145, 71, 25));
    jButton2.setForeground(Color.blue);
    jButton2.setText("×");
    jButton2.addActionListener(new calculatorFrame_jButton2_actionAdapter(this));
    jButton3.setBackground(Color.white);
    jButton3.setBounds(new Rectangle(75, 218, 53, 38));
    jButton3.setForeground(SystemColor.activeCaption);
    jButton3.setText(".");
    jButton3.addActionListener(new calculatorFrame_jButton3_actionAdapter(this));
    jButton4.setBackground(Color.white);
    jButton4.setBounds(new Rectangle(355, 30, 109, 28));
    jButton4.setForeground(Color.red);
    jButton4.setToolTipText("");
    jButton4.setActionCommand("C");
    jButton4.setText("Backspace");
    jButton4.addActionListener(new calculatorFrame_jButton4_actionAdapter(this));
    jButton5.setBackground(Color.white);
    jButton5.setBounds(new Rectangle(15, 173, 53, 38));
    jButton5.setForeground(SystemColor.activeCaption);
    jButton5.setText("7");
    jButton5.addActionListener(new calculatorFrame_jButton5_actionAdapter(this));
    jButton6.setBackground(Color.white);
    jButton6.setBounds(new Rectangle(15, 130, 53, 38));
    jButton6.setForeground(SystemColor.activeCaption);
    jButton6.setText("4");
    jButton6.addActionListener(new calculatorFrame_jButton6_actionAdapter(this));
    jButton7.setBackground(Color.white);
    jButton7.setBounds(new Rectangle(15, 85, 53, 38));
    jButton7.setForeground(SystemColor.activeCaption);
    jButton7.setDoubleBuffered(false);
    jButton7.setActionCommand("1");
    jButton7.setDisabledSelectedIcon(null);
    jButton7.setFocusPainted(true);
    jButton7.setText("1");
    jButton7.addKeyListener(new calculatorFrame_jButton7_keyAdapter(this));
    jButton7.addFocusListener(new calculatorFrame_jButton7_focusAdapter(this));
    jButton7.addActionListener(new calculatorFrame_jButton7_actionAdapter(this));
    jButton8.setBackground(Color.white);
    jButton8.setBounds(new Rectangle(135, 130, 53, 38));
    jButton8.setForeground(SystemColor.activeCaption);
    jButton8.setText("6");
    jButton8.addActionListener(new calculatorFrame_jButton8_actionAdapter(this));
    jButton9.setBackground(Color.white);
    jButton9.setBounds(new Rectangle(75, 173, 53, 38));
    jButton9.setForeground(SystemColor.activeCaption);
    jButton9.setText("8");
    jButton9.addActionListener(new calculatorFrame_jButton9_actionAdapter(this));
    jButton10.setBackground(Color.white);
    jButton10.setBounds(new Rectangle(75, 130, 53, 38));
    jButton10.setForeground(SystemColor.activeCaption);
    jButton10.setText("5");
    jButton10.addActionListener(new calculatorFrame_jButton10_actionAdapter(this));
    jButton11.setBackground(Color.white);
    jButton11.setBounds(new Rectangle(75, 85, 53, 38));
    jButton11.setForeground(SystemColor.activeCaption);
    jButton11.setText("2");
    jButton11.addActionListener(new calculatorFrame_jButton11_actionAdapter(this));
    jButton12.setBackground(Color.white);
    jButton12.setBounds(new Rectangle(200, 175, 71, 25));
    jButton12.setForeground(Color.blue);
    jButton12.setText("/");

    jButton12.addActionListener(new calculatorFrame_jButton12_actionAdapter(this));
    jButton13.setBackground(Color.white);
    jButton13.setBounds(new Rectangle(200, 115, 71, 25));
    jButton13.setForeground(Color.blue);
    jButton13.setText("－");
    jButton13.addActionListener(new calculatorFrame_jButton13_actionAdapter(this));
    jButton14.setBackground(Color.white);
    jButton14.setBounds(new Rectangle(135, 85, 53, 38));
    jButton14.setForeground(SystemColor.activeCaption);
    jButton14.setText("3");
    jButton14.addActionListener(new calculatorFrame_jButton14_actionAdapter(this));
    jButton15.setBackground(Color.white);
    jButton15.setBounds(new Rectangle(135, 173, 53, 38));
    jButton15.setForeground(SystemColor.activeCaption);
    jButton15.setText("9");
    jButton15.addActionListener(new calculatorFrame_jButton15_actionAdapter(this));
    jButton16.setBackground(Color.white);
    jButton16.setBounds(new Rectangle(200, 235, 72, 25));
    jButton16.setForeground(Color.blue);
    jButton16.setText("=");

    jButton16.addActionListener(new calculatorFrame_jButton16_actionAdapter(this));
    jButton17.setBackground(Color.white);
    jButton17.setBounds(new Rectangle(15, 218, 53, 38));
    jButton17.setForeground(SystemColor.activeCaption);
    jButton17.setText("0");
    jButton17.addActionListener(new calculatorFrame_jButton17_actionAdapter(this));
    jButton18.setBackground(Color.white);
    jButton18.setBounds(new Rectangle(200, 85, 71, 25));
    jButton18.setForeground(Color.blue);
    jButton18.setText("＋");


    jButton18.addActionListener(new calculatorFrame_jButton18_actionAdapter(this));
    contentPane.setBackground(Color.black);
    contentPane.setFont(new java.awt.Font("Dialog", 1, 30));
    contentPane.setForeground(Color.blue);
    contentPane.setAlignmentX((float) 0.5);
    contentPane.setBorder(BorderFactory.createEtchedBorder());
    contentPane.setDebugGraphicsOptions(0);
    contentPane.setDoubleBuffered(true);
    contentPane.setMaximumSize(new Dimension(20, 20));
    contentPane.setMinimumSize(new Dimension(20, 20));
    contentPane.setNextFocusableComponent(this);
    contentPane.setOpaque(true);
    contentPane.setPreferredSize(new Dimension(20, 20));
    contentPane.setToolTipText("");
    contentPane.setInputVerifier(null);
    contentPane.setVerifyInputWhenFocusTarget(false);
    contentPane.addFocusListener(new calculatorFrame_contentPane_focusAdapter(this));
    jTextArea1.setEnabled(false);
    jTextArea1.setAlignmentX((float) 0.5);
    jTextArea1.setBorder(BorderFactory.createEtchedBorder());
    jTextArea1.setMaximumSize(new Dimension(20, 20));
    jTextArea1.setMinimumSize(new Dimension(20, 20));
    jTextArea1.setPreferredSize(new Dimension(20, 20));
    jTextArea1.setToolTipText("");
    jTextArea1.setDisabledTextColor(Color.darkGray);
    jTextArea1.setSelectionStart(0);
    jTextArea1.setText("");
    jTextArea1.setTabSize(12);
    jTextArea1.setBounds(new Rectangle(14, 30, 265, 29));
    jButton19.setBackground(Color.white);
    jButton19.setBounds(new Rectangle(134, 218, 53, 38));
    jButton19.setForeground(UIManager.getColor("ToolBar.dockingForeground"));
    jButton19.setText("+/-");
    jButton19.addActionListener(new calculatorFrame_jButton19_actionAdapter(this));
    jButton20.setBackground(Color.white);
    jButton20.setBounds(new Rectangle(296, 30, 47, 28));
    jButton20.setForeground(Color.red);
    jButton20.setText("C");
    jButton20.addActionListener(new calculatorFrame_jButton20_actionAdapter(this));
    jButton21.setBackground(Color.white);
    jButton21.setBounds(new Rectangle(281, 85, 92, 25));
    jButton21.setForeground(Color.blue);
    jButton21.setText("Sin ");
    jButton21.addActionListener(new calculatorFrame_jButton21_actionAdapter(this));
    jButton22.setBackground(Color.white);
    jButton22.setBounds(new Rectangle(281, 145, 92, 25));
    jButton22.setForeground(Color.blue);
    jButton22.setText("Cos");
    jButton22.addActionListener(new calculatorFrame_jButton22_actionAdapter(this));
    jButton23.setBackground(Color.white);
    jButton23.setBounds(new Rectangle(281, 205, 92, 25));
    jButton23.setForeground(Color.blue);
    jButton23.setText("Tan");
    jButton23.addActionListener(new calculatorFrame_jButton23_actionAdapter(this));
    jButton24.setBackground(Color.white);
    jButton24.setBounds(new Rectangle(281, 115, 92, 25));
    jButton24.setForeground(Color.blue);
    jButton24.setText("arcSin  ");
    jButton24.addActionListener(new calculatorFrame_jButton24_actionAdapter(this));
    jButton26.setText("arcCos ");
    jButton26.addActionListener(new calculatorFrame_jButton26_actionAdapter(this));
    jButton26.setBackground(Color.white);
    jButton26.setBounds(new Rectangle(281, 175, 92, 25));
    jButton26.setForeground(Color.blue);
    jButton27.setBackground(Color.white);
    jButton27.setBounds(new Rectangle(280, 235, 93, 25));
    jButton27.setForeground(Color.blue);
    jButton27.setText("arcTan ");
    jButton27.addActionListener(new calculatorFrame_jButton27_actionAdapter(this));
    jButton25.setBackground(Color.white);
    jButton25.setBounds(new Rectangle(380, 85, 84, 25));
    jButton25.setForeground(Color.blue);
    jButton25.setText("EXP");
    jButton25.addActionListener(new calculatorFrame_jButton25_actionAdapter(this));
    jButton29.setBackground(Color.white);
    jButton29.setBounds(new Rectangle(381, 145, 83, 25));
    jButton29.setForeground(Color.blue);
    jButton29.setText("1/X");
    jButton29.addActionListener(new calculatorFrame_jButton29_actionAdapter(this));
    jButton30.setBackground(Color.white);
    jButton30.setBounds(new Rectangle(380, 114, 84, 25));
    jButton30.setForeground(Color.blue);
    jButton30.setText("Log");
    jButton30.addActionListener(new calculatorFrame_jButton30_actionAdapter(this));
    jButton31.setBackground(Color.white);
    jButton31.setBounds(new Rectangle(381, 175, 83, 25));
    jButton31.setForeground(Color.blue);
    jButton31.setText("Sqrt");
    jButton31.addActionListener(new calculatorFrame_jButton31_actionAdapter(this));
    jButton32.setBackground(Color.white);
    jButton32.setBounds(new Rectangle(380, 205, 84, 25));
    jButton32.setForeground(Color.blue);
    jButton32.setText("Abs");
    jButton32.addActionListener(new calculatorFrame_jButton32_actionAdapter(this));
    jButton33.setBackground(Color.white);
    jButton33.setBounds(new Rectangle(380, 235, 84, 25));
    jButton33.setForeground(Color.blue);
    jButton33.setText("n !");
    jButton33.addActionListener(new calculatorFrame_jButton33_actionAdapter(this));
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 15));
    jLabel1.setForeground(Color.white);
    jLabel1.setText(" CopyRight @ 03_Software Engineering2  Liu XunHua");
    jLabel1.setBounds(new Rectangle(12, 271, 372, 40));
    contentPane.add(jButton13, null);
    contentPane.add(jButton2, null);
    contentPane.add(jButton12, null);
    contentPane.add(jButton1, null);
    contentPane.add(jButton5, null);
    contentPane.add(jButton9, null);
    contentPane.add(jButton11, null);
    contentPane.add(jButton14, null);
    contentPane.add(jButton7, null);
    contentPane.add(jButton10, null);
    contentPane.add(jButton6, null);
    contentPane.add(jButton8, null);
    contentPane.add(jButton15, null);
    contentPane.add(jButton18, null);
    contentPane.add(jButton17, null);
    contentPane.add(jButton3, null);
    contentPane.add(jButton19, null);
    contentPane.add(jButton16, null);
    contentPane.add(jButton21, null);
    contentPane.add(jButton24, null);
    contentPane.add(jButton22, null);
    contentPane.add(jButton26, null);
    contentPane.add(jButton27, null);
    contentPane.add(jButton23, null);
    contentPane.add(jButton25, null);
    contentPane.add(jButton30, null);
    contentPane.add(jButton29, null);
    contentPane.add(jButton31, null);
    contentPane.add(jButton32, null);
    contentPane.add(jButton33, null);
    contentPane.add(jButton20, null);
    contentPane.add(jTextArea1, null);
    contentPane.add(jButton4, null);
    contentPane.add(jLabel1, null);
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    this.setFocusable(true);
    jTextArea1.setText("0");
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {

      System.exit(0);}
  }

  void jButton7_actionPerformed(ActionEvent e)
  {
    if(isresult){
      jTextArea1.setText("0");
      isresult=!isresult;
  }
  strValue=jTextArea1.getText();
  if(strValue.equals("0")){

     jTextArea1.setText(e.getActionCommand());}

     else{
    strValue=strValue+e.getActionCommand();
    jTextArea1.setText(strValue);}
    this.requestFocus();
  }


  void jButton11_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton14_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton6_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton10_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton8_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton5_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton9_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue);}
         this.requestFocus();
  }

  void jButton15_actionPerformed(ActionEvent e) {
    if(isresult){
          jTextArea1.setText("0");
          isresult=!isresult;
      }
      strValue=jTextArea1.getText();
      if(strValue.equals("0")){
         jTextArea1.setText(e.getActionCommand());}

         else{
       strValue=strValue+e.getActionCommand();

        jTextArea1.setText(strValue); }
       this.requestFocus();
  }

  void jButton17_actionPerformed(ActionEvent e) {