Java实现计算器加减乘除功能.zip

/* * 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 com.mycompany.mavenproject1; import com.mycompany.mavenproject1.Calculator; import javax.swing.JOptionPane; /** * * @author hedingwei */ public class Main extends javax.swing.JFrame { /** * Creates new form Main */ public Main() { initComponents(); } /** * 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() { jPanel1 = new javax.swing.JPanel(); screen = new javax.swing.JTextField(); jPanel3 = new javax.swing.JPanel(); btnAC = new javax.swing.JButton(); btnPlus = new javax.swing.JButton(); btnSubtract = new javax.swing.JButton(); btnMultiply = new javax.swing.JButton(); btn1 = new javax.swing.JButton(); btn2 = new javax.swing.JButton(); btn3 = new javax.swing.JButton(); btnDivide = new javax.swing.JButton(); btn4 = new javax.swing.JButton(); btn5 = new javax.swing.JButton(); btn6 = new javax.swing.JButton(); btnDot = new javax.swing.JButton(); btn7 = new javax.swing.JButton(); btn8 = new javax.swing.JButton(); btn9 = new javax.swing.JButton(); btn0 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("计算器"); jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("显示")); screen.setEditable(false); screen.setBackground(new java.awt.Color(153, 153, 153)); screen.setFont(new java.awt.Font("Lucida Grande", 0, 24)); // NOI18N screen.setForeground(new java.awt.Color(255, 255, 255)); screen.setHorizontalAlignment(javax.swing.JTextField.RIGHT); screen.setText("0"); screen.setToolTipText(""); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addContainerGap() .addComponent(screen) .addContainerGap()) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(jPanel1Layout.createSequentialGroup() .addComponent(screen, javax.swing.GroupLayout.DEFAULT_SIZE, 53, Short.MAX_VALUE) .addContainerGap()) ); jPanel3.setBorder(javax.swing.BorderFactory.createTitledBorder("")); jPanel3.setLayout(new java.awt.GridLayout(4, 4)); btnAC.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btnAC.setText("AC"); btnAC.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnACActionPerformed(evt); } }); jPanel3.add(btnAC); btnPlus.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btnPlus.setText("+"); btnPlus.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnPlusActionPerformed(evt); } }); jPanel3.add(btnPlus); btnSubtract.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btnSubtract.setText("-"); btnSubtract.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnSubtractActionPerformed(evt); } }); jPanel3.add(btnSubtract); btnMultiply.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btnMultiply.setText("x"); btnMultiply.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnMultiplyActionPerformed(evt); } }); jPanel3.add(btnMultiply); btn1.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn1.setText("1"); btn1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn1ActionPerformed(evt); } }); jPanel3.add(btn1); btn2.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn2.setText("2"); btn2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn2ActionPerformed(evt); } }); jPanel3.add(btn2); btn3.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn3.setText("3"); btn3.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn3ActionPerformed(evt); } }); jPanel3.add(btn3); btnDivide.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btnDivide.setText("/"); btnDivide.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnDivideActionPerformed(evt); } }); jPanel3.add(btnDivide); btn4.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn4.setText("4"); btn4.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn4ActionPerformed(evt); } }); jPanel3.add(btn4); btn5.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn5.setText("5"); btn5.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn5ActionPerformed(evt); } }); jPanel3.add(btn5); btn6.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn6.setText("6"); btn6.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn6ActionPerformed(evt); } }); jPanel3.add(btn6); btnDot.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btnDot.setText("."); btnDot.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnDotActionPerformed(evt); } }); jPanel3.add(btnDot); btn7.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn7.setText("7"); btn7.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn7ActionPerformed(evt); } }); jPanel3.add(btn7); btn8.setFont(new java.awt.Font("Lucida Grande", 0, 18)); // NOI18N btn8.setText("8"); btn8.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btn8Actio