java计算器实现源代码上传

import java.awt.*;import java.awt.event.*;import javax.swing.*;public class test{public static void main(String args[] ){jisuan frame = new jisuan();//新建一个jisuan类对象frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//为该对象设置默认关闭动作frame.setResizable(false);//设置不可调整大小frame.show();//将该框架对象显示出来}}class jisuan extends JFrame implements ActionListener//jisuan类继承自JFrame类{private JMenuBar menubar = new JMenuBar();private JMenu m1 = new JMenu("文件(field)");private JMenu m2 = new JMenu("编辑(education)");private JMenu m3 = new JMenu("帮助(help)");//新建菜单栏private JMenuItem t2,t3,t4,t7,t8;private JPanel j1,j2;private JButton b0,b1,b2,b3,b4,b5,b6,b7,b8,b9;private JButton kaigen,qiuyu,pingfang,zengxuan,yuxuan ,jiecheng,jia,jian,cheng,chu,dengyu;private Container contenPane = this.getContentPane();//获取当前的内容窗格private JTextField p1,p2;private JLabel j0;private double tem1 = 0;private double tem2 = 0;private double tem3 = 0;private int biaozhi=0;public jisuan() //构造函数{super.setTitle("简单计算器");//设置标题super.setSize(640,200);//设置尺寸super.setJMenuBar(menubar);menubar.add(m1);menubar.add(m2);menubar.add(m3);t2 = new JMenuItem("全部清零");t3 = new JMenuItem("打开圆周率");t4 = new JMenuItem("退出");m1.add(t2);m1.add(t3);m1.add(t4);t7 = new JMenuItem("写字本");m2.add(t7);t8 = new JMenuItem("关于....");m3.add(t8);j1 = new JPanel();p1 = new JTextField(40);p1.setEditable(false);j0 = new JLabel("请输入要计算的数字：");// p2 = new JTextField("请输入计算的数字",10); // p3 = new JTextField("结果是",10);// p3.setEditable(false);j1.add(j0);j1.add(p1);// j1.add(p2);// j1.add(p3);j2 = new JPanel();GridLayout f = new GridLayout(3,7);//新建一个布局管理器对象j2.setLayout(f);//将布局管理器对象加入到面板中b0 = new JButton("0");b1 = new JButton("1");b2 = new JButton("2");b3 = new JButton("3");b4 = new JButton("4");b5 = new JButton("5");b6 = new JButton("6");b7 = new JButton("7");b8 = new JButton("8");b9 = new JButton("9");// j3 = new JPanel();j2.add(b0);j2.add(b1);j2.add(b2);j2.add(b3);j2.add(b4);j2.add(b5);j2.add(b6);j2.add(b7);j2.add(b8);j2.add(b9);jia = new JButton("+");jian = new JButton("-");cheng = new JButton("*");chu = new JButton("/");kaigen = new JButton("立方根");qiuyu = new JButton("平方根");pingfang = new JButton("平方"); zengxuan = new JButton("sin");yuxuan = new JButton("cos");jiecheng = new JButton("阶乘");dengyu = new JButton("=");j2.add(jia);j2.add(jian);j2.add(cheng);j2.add(chu);j2.add(kaigen);j2.add(qiuyu);j2.add(pingfang);j2.add(zengxuan);j2.add(yuxuan);j2.add(jiecheng);j2.add(dengyu);contenPane.add(j2,BorderLayout.CENTER); //将j2添加到内容窗格中同时为其指定位置contenPane.add(j1,BorderLayout.NORTH); b0.addActionListener(this);b1.addActionListener(this);b2.addActionListener(this);b3.addActionListener(this);b4.addActionListener(this);b5.addActionListener(this);b6.addActionListener(this);b7.addActionListener(this);b8.addActionListener(this);b9.addActionListener(this);jia.addActionListener(this);jian.addActionListener(this);cheng.addActionListener(this);chu.addActionListener(this);kaigen.addActionListener(this);qiuyu.addActionListener(this); pingfang.addActionListener(this); zengxuan.addActionListener(this); yuxuan.addActionListener(this);jiecheng.addActionListener(this);dengyu.addActionListener(this);//为按钮添加事件监听器t2.addActionListener(this);t3.addActionListener(this);t4.addActionListener(this);t7.addActionListener(this);t8.addActionListener(this);//JMenuItem类对象添加事件监听器}public void actionPerformed(ActionEvent e) {if(e.getSource()==b0){p1.setText("0");j1.add(p1);tem1 = 0;}else if(e.getSource() == b1){p1.setText("1");j1.add(p1);tem1 = 1;}else if(e.getSource() == b2){p1.setText("2");j1.add(p1);tem1 = 2;}else if(e.getSource() == b3){p1.setText("3");j1.add(p1);tem1 = 3;}else if(e.getSource() == b4){p1.setText("4");j1.add(p1);tem1 = 4;}else if(e.getSource() == b5){p1.setText("5");j1.add(p1);tem1 = 5;}else if(e.getSource() == b6) {p1.setText("6");j1.add(p1);tem1 = 6;}else if(e.getSource() == b7) {p1.setText("7");j1.add(p1);tem1 = 7;}else if(e.getSource() == b8) {p1.setText("8");j1.add(p1);tem1 = 8;}else if(e.getSource() == b9) {p1.setText("9");j1.add(p1);tem1 = 9;}if(e.getSource()==jia){p1.setText(tem1+"+");j1.add(p1);tem2 = tem1;biaozhi = 0;}if(e.getSource()==jian){p1.setText(tem1+"-");j1.add(p1);tem2 = tem1;biaozhi = 1;}if(e.getSource()==cheng){p1.setText(tem1+"*");j1.add(p1);tem2 = tem1;biaozhi = 2;}if(e.getSource()==chu){p1.setText(tem1+"/");j1.add(p1);tem2 = tem1;biaozhi = 3;}if(e.getSource()==kaigen){p1.setText(tem1+"立方根"); j1.add(p1);tem2 = tem1;biaozhi = 4;}if(e.getSource()==qiuyu){p1.setText(tem1+"平方根"); j1.add(p1);tem2 = tem1;biaozhi = 5;}if(e.getSource()==pingfang){p1.setText(tem1+"平方"); j1.add(p1);tem2 = tem1;biaozhi = 6;}if(e.getSource()==zengxuan){p1.setText(tem1+"sina"); j1.add(p1);tem2 = tem1;biaozhi = 7;}if(e.getSource()==yuxuan){p1.setText(tem1+"cosa");j1.add(p1);tem2 = tem1;biaozhi = 8;}if(e.getSource()==jiecheng){p1.setText(tem1+"!");j1.add(p1);tem2 = tem1;biaozhi = 9;}if(e.getSource()==dengyu){if(biaozhi ==0){tem3 = tem2+tem1;}if(biaozhi ==1){tem3 = tem2-tem1;}if(biaozhi ==2){tem3 = tem2*tem1;}if(biaozhi ==3){tem3 = tem2/tem1;}if(biaozhi ==4){tem3 =Math.cbrt(tem1); }if(biaozhi ==5){tem3 =Math.sqrt(tem1); }if(biaozhi ==6){tem3 = tem1*tem1;}if(biaozhi ==7){tem3 = Math.sin(tem1);}if(biaozhi ==8){tem3 = Math.cos(tem1);}if(biaozhi ==9){tem3 = jisuanjiecheng(tem1);}p1.setText("="+tem3);j1.add(p1);}else if(e.getSource()==t2){p1.setText("0.0");j1.add(p1);}else if(e.getSource()==t3){p1.setText(Math.PI+"");j1.add(p1);}else if(e.getSource()==t4){System.exit(0);}else if(e.getSource()==t8){helpFile myhelpfile=new helpFile(); myhelpfile.show();}else if(e.getSource()==t7){repaint();jishiben mynewjisuan=new jishiben(); mynewjisuan.show();}}//实现监听器private double jisuanjiecheng(double a){if(a==1) return 1;//递归出口else return (jisuanjiecheng(a-1)*a);//实现递归计算阶乘}}class jishiben extends JFrame//实现记事本类{private Container contenPane1 = getContentPane();private JTextArea text = new JTextArea();private JButton tuibutton;private JPanel ji1,ji2;public jishiben(){super.setTitle("文本编辑器");//设置标题super.setSize(300,200);//设置尺寸ji1 = new JPanel();ji2 = new JPanel();text = new JTextArea("请输入你要记录的文字",7,20);//行数为5列数为20text.setLineWrap(true);//为文本框设置可回绕，即满行之后自动实现换行tuibutton = new JButton("退出");tuibutton.addActionListener(new tuiActionListener()); ji1.add(text);ji2.add(tuibutton);contenPane1.add(ji2,BorderLayout.SOUTH);contenPane1.add(ji1,BorderLayout.NORTH);}private class tuiActionListener implements ActionListener {public void actionPerformed(ActionEvent e){setVisible(false);}}}class helpFile extends JFrame//实现帮助文档类{private Container contenPane1 = getContentPane();private JTextArea text = new JTextArea();private JButton tuibutton;private JPanel textPane,buttonPane;public helpFile(){super.setTitle("帮助文档");//设置标题super.setSize(300,200);//设置尺寸textPane = new JPanel();buttonPane = new JPanel();text = new JTextArea("请输入你要记录的文字",7,20);//行数为5列数为20text.setLineWrap(true);//为文本框设置可回绕，即满行之后自动实现换行text.setText(" 这个计算器实现简单的一位数的运算，附带了一个记事本的功能。