Java一个计算器的程序

/* * NewApplet.java * * Created on 2008年11月20日, 下午12:11 */ package counter1; /** * * @author Administrator */ public class NewApplet extends java.applet.Applet { double startnum; double endnum; boolean isResult=false; boolean flagAdd=false; boolean flagSub=false; boolean flagMul=false; boolean flagDiv=false; String strvalue=null; /** Initializes the applet NewApplet */ public void init() { try { java.awt.EventQueue.invokeAndWait(new Runnable() { public void run() { initComponents(); } }); } catch (Exception ex) { ex.printStackTrace(); } } /** This method is called from within the init() method 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="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { 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(); jButton19 = new javax.swing.JButton(); jButton20 = new javax.swing.JButton(); jButton21 = new javax.swing.JButton(); jButton22 = new javax.swing.JButton(); jButton1.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton1.setText("1"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton2.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton2.setText("2"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton3.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton3.setText("3"); jButton3.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton4.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton4.setText("4"); jButton4.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton5.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton5.setText("5"); jButton5.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton6.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton6.setText("6"); jButton6.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton7.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton7.setText("7"); jButton7.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton8.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton8.setText("8"); jButton8.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton9.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton9.setText("9"); jButton9.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton10.setFont(new java.awt.Font("宋体", 0, 14)); // NOI18N jButton10.setText("0"); jButton10.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton11.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jButton11.setText("+"); jButton11.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton11ActionPerformed(evt); } }); jButton12.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jButton12.setText("-"); jButton12.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton12ActionPerformed(evt); } }); jButton13.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jButton13.setText("*"); jButton13.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton13ActionPerformed(evt); } }); jButton14.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jButton14.setText("/"); jButton14.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton14ActionPerformed(evt); } }); jButton15.setFont(new java.awt.Font("宋体", 1, 12)); // NOI18N jButton15.setText("sin"); jButton15.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton15ActionPerformed(evt); } }); jButton16.setFont(new java.awt.Font("宋体", 1, 12)); // NOI18N jButton16.setText("cos"); jButton16.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton16ActionPerformed(evt); } }); jButton17.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jButton17.setText("n!"); jButton17.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton17ActionPerformed(evt); } }); jButton18.setFont(new java.awt.Font("宋体", 1, 14)); // NOI18N jButton18.setText("off"); jButton18.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton18ActionPerformed(evt); } }); jButt