计算器开发


/*

 * To change this license header, choose License Headers in Project Properties.

 * To change this template file, choose Tools | Templates

 * and open the template in the editor.

 */

package pack;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.script.ScriptEngine;

import javax.script.ScriptEngineManager;

import javax.script.ScriptException;

/**

 *

 * @author Administrator

 */

public class jisuanqi extends javax.swing.JFrame {

    /**

     * Creates new form jisuanqi

     */

    ////计算器类的构造函数，对运算符和窗体上的控件进行初始化。

    public jisuanqi() {

        initComponents();

    }//自动生成的代码，不用管他们

    public void number(String str){

          String strtext = jTextField1.getText();//获取文本框的内容

        if (strtext.equals("0")) {

            jTextField1.setText(str);

        } else {

            StringBuffer strbuf = new StringBuffer(strtext);

            strbuf.append(str);//追加

            jTextField1.setText(strbuf.toString());

        }

   

    }

    public void setYSF(String str){

        String strtext = jTextField1.getText();

        int lastRight=strtext.length()-1;

        char ch=strtext.charAt(lastRight);

        if(ch=='+'||ch=='-'||ch=='*'||ch=='/'){

            String strReasult=strtext.substring(0,lastRight)+str;

            jTextField1.setText(strReasult);

        }else{

            jTextField1.setText(strtext+str);

        }

    }

   

    /**

     * 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.

     */

    @SuppressWarnings("unchecked")

    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents

    private void initComponents() {

        jLayeredPane1 = new javax.swing.JLayeredPane();

        jPanel1 = new javax.swing.JPanel();

        jTextField1 = new javax.swing.JTextField();

        jButton1 = new javax.swing.JButton();

        jButton2 = new javax.swing.JButton();

        jButton3 = new javax.swing.JButton();

        jButton4 = new javax.swing.JButton();

        jButton5 = new javax.swing.JButton();

        jButton6 = new javax.swing.JButton();

        jButton7 = new javax.swing.JButton();

        jButton8 = new javax.swing.JButton();

        jButton9 = new javax.swing.JButton();

        jButton10 = new javax.swing.JButton();

        jButton11 = new javax.swing.JButton();

        jButton12 = new javax.swing.JButton();

        jButton13 = new javax.swing.JButton();

        jButton14 = new javax.swing.JButton();

        jButton15 = new javax.swing.JButton();

        jButton16 = new javax.swing.JButton();

        jButton17 = new javax.swing.JButton();

        jButton18 = new javax.swing.JButton();

        jPanel3 = new javax.swing.JPanel();

        jLabel1 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setEnabled(false);

        jPanel1.setOpaque(false);

        jTextField1.setFont(new java.awt.Font("宋体", 0, 24)); // NOI18N

        jTextField1.setHorizontalAlignment(javax.swing.JTextField.RIGHT);

        jTextField1.setText("0");

        jButton1.setText("4");

        jButton1.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton1MouseReleased(evt);

            }

        });

        jButton2.setText("7");

        jButton2.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton2MouseReleased(evt);

            }

        });

        jButton3.setText("1");

        jButton3.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton3MouseReleased(evt);

            }

        });

        jButton4.setText("8");

        jButton4.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton4MouseReleased(evt);

            }

        });

        jButton5.setText("2");

        jButton5.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton5MouseReleased(evt);

            }

        });

        jButton6.setText("5");

        jButton6.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton6MouseReleased(evt);

            }

        });

        jButton7.setText("3");

        jButton7.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton7MouseReleased(evt);

            }

        });

        jButton8.setText("6");

        jButton8.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton8MouseReleased(evt);

            }

        });

        jButton9.setText("9");

        jButton9.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton9MouseReleased(evt);

            }

        });

        jButton10.setText("C");

        jButton10.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton10MouseReleased(evt);

            }

        });

        jButton11.setText("←");

        jButton11.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton11MouseReleased(evt);

            }

        });

        jButton12.setText("=");

        jButton12.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton12MouseReleased(evt);

            }

        });

        jButton13.setText("0");

        jButton13.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton13MouseReleased(evt);

            }

        });

        jButton14.setText(".");

        jButton14.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton14MouseReleased(evt);

            }

        });

        jButton15.setText("_");

        jButton15.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton15MouseReleased(evt);

            }

        });

        jButton16.setText("*");

        jButton16.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton16MouseReleased(evt);

            }

        });

        jButton17.setText("/");

        jButton17.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton17MouseReleased(evt);

            }

        });

        jButton18.setText("+");

        jButton18.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseReleased(java.awt.event.MouseEvent evt) {

                jButton18MouseReleased(evt);

            }

        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);

        jPanel1.setLayout(jPanel1Layout);

        jPanel1Layout.setHorizontalGroup(

            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGap(0, 318, Short.MAX_VALUE)

 
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           .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                .addGroup(jPanel1Layout.createSequentialGroup()

                    .addContainerGap()

                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                        .addGroup(jPanel1Layout.createSequentialGroup()

                            .addComponent(jButton13, javax.swing.GroupLayout.PREFERRED_SIZE, 98, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                            .addComponent(jButton14, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE))

                        .addGroup(jPanel1Layout.createSequentialGroup()

                            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                                .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE))

                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                                .addComponent(jButton4, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addComponent(jButton6, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addComponent(jButton5, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE))

                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                                .addComponent(jButton7, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addComponent(jButton9, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addComponent(jButton8, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE))))

                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 30, Short.MAX_VALUE)

                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                        .addComponent(jButton18, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addComponent(jButton15, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addComponent(jButton17, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addComponent(jButton16, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE))

                    .addGap(18, 18, 18)

                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                        .addComponent(jButton12, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 54, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addComponent(jButton11, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 54, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addComponent(jButton10, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 54, javax.swing.GroupLayout.PREFERRED_SIZE))

                    .addContainerGap())

                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()

                    .addContainerGap(20, Short.MAX_VALUE)

                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 270, javax.swing.GroupLayout.PREFERRED_SIZE)

                    .addGap(28, 28, 28)))

        );

        jPanel1Layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {jButton1, jButton14, jButton2, jButton3, jButton4, jButton5, jButton6, jButton7, jButton8, jButton9});

        jPanel1Layout.setVerticalGroup(

            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGap(0, 294, Short.MAX_VALUE)

            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                .addGroup(jPanel1Layout.createSequentialGroup()

                    .addContainerGap()

                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 78, javax.swing.GroupLayout.PREFERRED_SIZE)

                    .addGap(30, 30, 30)

                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                        .addGroup(jPanel1Layout.createSequentialGroup()

                            .addGap(41, 41, 41)

                            .addComponent(jButton16)

                            .addGap(82, 82, 82))

                        .addGroup(jPanel1Layout.createSequentialGroup()

                            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)

                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                                    .addComponent(jButton2)

                                    .addComponent(jButton4)

                                    .addComponent(jButton9)

                                    .addComponent(jButton17))

                                .addComponent(jButton11))

                            .addGap(18, 18, 18)

                            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                                .addComponent(jButton1)

                                .addComponent(jButton6)

                                .addComponent(jButton8)

                                .addComponent(jButton10, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))

                            .addGap(18, 29, Short.MAX_VALUE)

                            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                                .addGroup(jPanel1Layout.createSequentialGroup()

                                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                                        .addComponent(jButton3)

                                        .addComponent(jButton5)

                                        .addComponent(jButton7)

                                        .addComponent(jButton15))

                                    .addGap(18, 18, 18)

                                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                                        .addComponent(jButton13)

                                        .addComponent(jButton14)

                                        .addComponent(jButton18)))

                                .addComponent(jButton12, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE))

                            .addContainerGap()))))

        );

        jPanel1Layout.linkSize(javax.swing.SwingConstants.VERTICAL, new java.awt.Component[] {jButton1, jButton14, jButton2, jButton3, jButton4, jButton5, jButton6, jButton7, jButton8, jButton9});

        jLabel1.setIcon(new javax.swing.ImageIcon("C:\\Users\\Administrator\\Desktop\\计算器\\1SG)DUM1[T4{}~P{E[Z)G74.png")); // NOI18N

        jLabel1.setText("jLabel1");

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);

        jPanel3.setLayout(jPanel3Layout);

        jPanel3Layout.setHorizontalGroup(

            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(jPanel3Layout.createSequentialGroup()

                .addGap(0, 0, Short.MAX_VALUE)

                .addComponent(jLabel1))

        );

        jPanel3Layout.setVerticalGroup(

            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(jPanel3Layout.createSequentialGroup()

                .addGap(0, 0, Short.MAX_VALUE)

                .addComponent(jLabel1)

                .addGap(0, 0, Short.MAX_VALUE))

        );

        javax.swing.GroupLayout jLayeredPane1Layout = new javax.swing.GroupLayout(jLayeredPane1);

        jLayeredPane1.setLayout(jLayeredPane1Layout);

        jLayeredPane1Layout.setHorizontalGroup(

            jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(jLayeredPane1Layout.createSequentialGroup()

                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addGap(0, 0, Short.MAX_VALUE))

            .addGroup(jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jLayeredPane1Layout.createSequentialGroup()

                    .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, 331, Short.MAX_VALUE)

                    .addContainerGap()))

        );

        jLayeredPane1Layout.setVerticalGroup(

            jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jLayeredPane1Layout.createSequentialGroup()

                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addGap(43, 43, 43))

            .addGroup(jLayeredPane1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                .addGroup(jLayeredPane1Layout.createSequentialGroup()

                    .addContainerGap()

                    .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                    .addContainerGap(32, Short.MAX_VALUE)))

        );

        jLayeredPane1.setLayer(jPanel1, javax.swing.JLayeredPane.DEFAULT_LAYER);

        jLayeredPane1.setLayer(jPanel3, javax.swing.JLayeredPane.DEFAULT_LAYER);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());

        getContentPane().setLayout(layout);

        layout.setHorizontalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 326, javax.swing.GroupLayout.PREFERRED_SIZE)

        );

        layout.setVerticalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addComponent(jLayeredPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 321, Short.MAX_VALUE)

        );

        pack();

    }// </editor-fold>//GEN-END:initComponents

    private void jButton18MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton18MouseReleased

        // TODO add your handling code here:

        setYSF("+");

    }//GEN-LAST:event_jButton18MouseReleased

    private void jButton17MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton17MouseReleased

        // TODO add your handling code here:

        setYSF("/");

    }//GEN-LAST:event_jButton17MouseReleased

    private void jButton16MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton16MouseReleased

        // TODO add your handling code here:

        setYSF("*");

    }//GEN-LAST:event_jButton16MouseReleased

    private void jButton15MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton15MouseReleased

        // TODO add your handling code here:

        setYSF("-");

    }//GEN-LAST:event_jButton15MouseReleased

    private void jButton14MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton14MouseReleased

        // TODO add your handling code here:

        String strText = jTextField1.getText();

        if(strText.charAt(strText.length()-1 )<='9'

            && strText.charAt(strText.length()-1 )>='0'){

            int nPiont =strText.lastIndexOf(".");

            int nJia =strText.lastIndexOf("+");

            int nJian =strText.lastIndexOf("-");

            int nCheng =strText.lastIndexOf("*");

            int nChu =strText.lastIndexOf("/");

            if(nPiont > nJia

                && nPiont > nJian

                && nPiont > nCheng

                && nPiont > nChu){

            }else{

                jTextField1.setText(strText +".");

            }

        }

    }//GEN-LAST:event_jButton14MouseReleased

   //下面就是给0-9数字按钮设置一个事件，在事件里调用上面写的number方法

    private void jButton13MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton13MouseReleased

        // TODO add your handling code here:

        number("0");

    }//GEN-LAST:event_jButton13MouseReleased

    private void jButton12MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton12MouseReleased

        // TODO add your handling code here:

        ScriptEngineManager manager=new ScriptEngineManager();

        ScriptEngine se=manager.getEngineByName("js");

        Double result=null;

        try {

            result=(Double)se.eval("("+jTextField1.getText()+")*1.0");

        } catch (ScriptException ex) {

            Logger.getLogger(jisuanqi.class.getName()).log(Level.SEVERE, null, ex);

            jTextField1.setText("输入错误，按C重输");

        }

        jTextField1.setText(result.toString());

    }//GEN-LAST:event_jButton12MouseReleased

    private void jButton11MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton11MouseReleased

        // TODO add your handling code here:

        String strText = jTextField1.getText();

        StringBuffer strBuf = new StringBuffer(strText);

        if(strText.length()>1){

            strBuf.deleteCharAt(strText.length()-1);

            jTextField1.setText(strBuf.toString());

        }else{

            jTextField1.setText("0");

        }// TODO add your handling code here:

    }//GEN-LAST:event_jButton11MouseReleased

    private void jButton10MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton10MouseReleased

        // TODO add your handling code here:

        jTextField1.setText(null);

    }//GEN-LAST:event_jButton10MouseReleased

    private void jButton9MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton9MouseReleased

        // TODO add your handling code here:

        number("9");

    }//GEN-LAST:event_jButton9MouseReleased

    private void jButton8MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton8MouseReleased

        // TODO add your handling code here:

        number("6");

    }//GEN-LAST:event_jButton8MouseReleased

    private void jButton7MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton7MouseReleased

        // TODO add your handling code here:

        number("3");

    }//GEN-LAST:event_jButton7MouseReleased

    private void jButton6MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton6MouseReleased

        // TODO add your handling code here:

        number("5");

    }//GEN-LAST:event_jButton6MouseReleased

    private void jButton5MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton5MouseReleased

        // TODO add your handling code here:

        number("2");

    }//GEN-LAST:event_jButton5MouseReleased

    private void jButton4MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton4MouseReleased

        // TODO add your handling code here:

        number("8");

    }//GEN-LAST:event_jButton4MouseReleased

    private void jButton3MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton3MouseReleased

        // TODO add your handling code here:

        number("1");

    }//GEN-LAST:event_jButton3MouseReleased

    private void jButton2MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton2MouseReleased

        // TODO add your handling code here:

        number("7");

    }//GEN-LAST:event_jButton2MouseReleased

    private void jButton1MouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jButton1MouseReleased

        // TODO add your handling code here:

        number("4");

    }//GEN-LAST:event_jButton1MouseReleased

 

  

    /**

     * @param args the command line arguments

     */

    public static void main(String args[]) {

        /* Set the Nimbus look and feel */

        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">

        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.

         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */

        try {

            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {

                if ("Nimbus".equals(info.getName())) {

                    javax.swing.UIManager.setLookAndFeel(info.getClassName());

                    break;

                }

            }

        } catch (ClassNotFoundException ex) {

            java.util.logging.Logger.getLogger(jisuanqi.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (InstantiationException ex) {

            java.util.logging.Logger.getLogger(jisuanqi.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (IllegalAccessException ex) {

            java.util.logging.Logger.getLogger(jisuanqi.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (javax.swing.UnsupportedLookAndFeelException ex) {

            java.util.logging.Logger.getLogger(jisuanqi.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        }

        //</editor-fold>

        /* Create and display the form */

        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {

                new jisuanqi().setVisible(true);//实例化一个计算器窗体，并将可见性设为true

            }

          

        });

    }

    // Variables declaration - do not modify//GEN-BEGIN:variables

    private javax.swing.JButton jButton1;

    private javax.swing.JButton jButton10;

    private javax.swing.JButton jButton11;

    private javax.swing.JButton jButton12;

    private javax.swing.JButton jButton13;

    private javax.swing.JButton jButton14;

    private javax.swing.JButton jButton15;

    private javax.swing.JButton jButton16;

    private javax.swing.JButton jButton17;

    private javax.swing.JButton jButton18;

    private javax.swing.JButton jButton2;

    private javax.swing.JButton jButton3;

    private javax.swing.JButton jButton4;

    private javax.swing.JButton jButton5;

    private javax.swing.JButton jButton6;

    private javax.swing.JButton jButton7;

    private javax.swing.JButton jButton8;

    private javax.swing.JButton jButton9;

    private javax.swing.JLabel jLabel1;

    private javax.swing.JLayeredPane jLayeredPane1;

    private javax.swing.JPanel jPanel1;

    private javax.swing.JPanel jPanel3;

    private javax.swing.JTextField jTextField1;

    // End of variables declaration//GEN-END:variables

}