calculatorjframe.java

java实现的计算器

/*
 * CalculatorJFrame.java
 *
 * Created on 2007年9月2日, 上午1:31
 */

package calculator;

/**
 *
 * @author  zhu
 */
public class CalculatorJFrame extends javax.swing.JFrame {
    
    /** Creates new form CalculatorJFrame */
    public CalculatorJFrame() {
        initComponents();
    }
   
    private void myFaction(String s) {  
        myPointClear();
        if (text1.getText().equals(new String("0"))) {                
                text1.setText(s);
        }
        else {                
            text1.setText(text1.getText() + s);
        }
        if (mybool == false)
            a = Double.parseDouble(text1.getText());
        else
            b = Double.parseDouble(text1.getText());
        /*
        if (mybool == false) { //正在输入第一个数据
            if (text1.getText().equals(new String("0"))) {                
                text1.setText(s);
            }
            else {                
                text1.setText(text1.getText() + s);
            }
            a = Double.parseDouble(text1.getText());
        }
        else { //正在输入第二个数据
            if (text1.getText().equals(new String("0"))) {               
                text1.setText(s);
            }
            else {                
                text1.setText(text1.getText() + s);
            }
            b = Double.parseDouble(text1.getText());
        } */       
    }
    
    private void myPointClear() {
        if (result != 0.0) {
            text1.setText(new String(""));
            result = 0.0;
            if (mybool == false)
                a = 0.0;
        }
    }
    
    private void myClear() {
        a = 0.0;
        b = 0.0;
        result = 0.0;
        mybool = false;
        what = '\u0000';
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" 生成的代码 ">//GEN-BEGIN:initComponents
    private void initComponents() {
        text1 = new javax.swing.JTextField();
        b7 = new javax.swing.JButton();
        b4 = new javax.swing.JButton();
        b1 = new javax.swing.JButton();
        b0 = new javax.swing.JButton();
        bbksp = new javax.swing.JButton();
        bce = new javax.swing.JButton();
        b5 = new javax.swing.JButton();
        b2 = new javax.swing.JButton();
        point = new javax.swing.JButton();
        jSeparator1 = new javax.swing.JSeparator();
        b16 = new javax.swing.JButton();
        bclr = new javax.swing.JButton();
        b6 = new javax.swing.JButton();
        mul = new javax.swing.JButton();
        b3 = new javax.swing.JButton();
        sub = new javax.swing.JButton();
        equalSign = new javax.swing.JButton();
        add = new javax.swing.JButton();
        b8 = new javax.swing.JButton();
        b9 = new javax.swing.JButton();
        div = new javax.swing.JButton();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("\u8ba1\u7b97\u5668");
        setResizable(false);

        b7.setText("7");
        b7.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b7MouseClicked(evt);
            }
        });

        b4.setText("4");
        b4.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b4MouseClicked(evt);
            }
        });

        b1.setText("1");
        b1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b1MouseClicked(evt);
            }
        });

        b0.setText("0");
        b0.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b0MouseClicked(evt);
            }
        });

        bbksp.setText("Bksp");
        bbksp.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                bbkspMouseClicked(evt);
            }
        });

        bce.setText("CE");
        bce.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                bceMouseClicked(evt);
            }
        });

        b5.setText("5");
        b5.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b5MouseClicked(evt);
            }
        });

        b2.setText("2");
        b2.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b2MouseClicked(evt);
            }
        });

        point.setText(".");
        point.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                pointMouseClicked(evt);
            }
        });

        jSeparator1.setForeground(new java.awt.Color(255, 204, 204));

        b16.setText("\u00b1");
        b16.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b16MouseClicked(evt);
            }
        });

        bclr.setText("Clr");
        bclr.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                bclrMouseClicked(evt);
            }
        });

        b6.setText("6");
        b6.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b6MouseClicked(evt);
            }
        });

        mul.setText("\uff0a");
        mul.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                mulMouseClicked(evt);
            }
        });

        b3.setText("3");
        b3.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b3MouseClicked(evt);
            }
        });

        sub.setText("-");
        sub.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                subMouseClicked(evt);
            }
        });

        equalSign.setText("=");
        equalSign.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                equalSignMouseClicked(evt);
            }
        });

        add.setText("+");
        add.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                addMouseClicked(evt);
            }
        });

        b8.setText("8");
        b8.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b8MouseClicked(evt);
            }
        });

        b9.setText("9");
        b9.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                b9MouseClicked(evt);
            }
        });

        div.setText("/");
        div.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                divMouseClicked(evt);
            }
        });

        jMenu1.setText("\u8ba1\u7b97\u5668");
        jMenuBar1.add(jMenu1);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(text1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 248, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(bbksp, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(b4, javax.swing.GroupLayout.DEFAULT_SIZE, 65, Short.MAX_VALUE)
                            .addComponent(b7, javax.swing.GroupLayout.DEFAULT_SIZE, 65, Short.MAX_VALUE)
                            .addComponent(b1, javax.swing.GroupLayout.DEFAULT_SIZE, 65, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(bce, javax.swing.GroupLayout.PREFERRED_SIZE, 59, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(b8, javax.swing.GroupLayout.DEFAULT_SIZE, 59, Short.MAX_VALUE)
                            .addComponent(b5, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 59, Short.MAX_VALUE)
                            .addComponent(b2, javax.swing.GroupLayout.DEFAULT_SIZE, 59, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)