计算器交互式Java程序设计

网络交互式-计算器程序： 兰州大学Java课程设计1.要求：利用GUI编程技术、网络编程技术、输入输出流技术，编写一个基于C/S的计算器软件。前台为类似于图1的图形界面，主要解决输入界面问题，可以解决简单计算问题，将复杂函数计算如sin、开平方根等操作交给后台服务器计算，计算后结果返回客户端显示，并将客户端的IP地址，发来的计算请求记录在一个日志文件calculate.log。2.实现：主类:服务器类：CalculatorServer客户端类：CalculatorClient辅类:查看日志类：lookJFrame图形面板类：mydraws&mycanvas//客户端import.*;importjava.io.*;importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;importjavax.swing.event.*;classCalculatorClientextendsJFrameimplementsRunnable,ActionListener{privateJTextFieldshow;privatePaneldispMain,dispLeft,dispRight;〃主（左右面板）privateJButton[]b;〃数字privateJButtonjia,jian,cheng,chu,xy,cos,sin,ln,ce,equ,bfh,point,zf,sqrt;//加减乘除各种运算按钮privateSocketsocket;privateDataInputStreamin=null;privateDataOutputStreamout=null;privateThreadthread;privateDoubleresult;privateDoubled1,d2;privateintj,action,op;privateStringopp;privateJLabellabelconnect;privateJButtonbuttonconnect;privateJMenultemclose,version,look,edit,word,background,caltuxing;//菜单栏菜单项设publicCalculatorClient(){super("马康-计算器客户端")；JMenuBarmb=newJMenuBar();//菜单栏JMenufilemenu=newJMenu("计算器")；JMenubigmenu=newJMenu("放大")；JMenucalmenu=newJMenu("画板")；JMenuvermenu=newJMenu("关于")；JMenueditmenu=newJMenu("编辑")；look=newJMenuItem("查看日志")；close=newJMenuItem("退出")；version=newJMenuItem("作者")；background=newJMenuItem("背景")；caltuxing=newJMenuItem("图形画板")；word=newJMenuItem("放大")；filemenu.add(look)；filemenu.add(close)；vermenu.add(version)；editmenu.add(background)；calmenu.add(caltuxing)；bigmenu.add(word)；mb.add(filemenu)；mb.add(editmenu)；mb.add(calmenu)；mb.add(bigmenu)；mb.add(vermenu)；this.setJMenuBar(mb)；look.addActionListener(this)；close.addActionListener(this)；background.addActionListener(this)；word.addActionListener(this)；version.addActionListener(this)；caltuxing.addActionListener(this)；socket=newSocket()；Imageimage=getToolkit().getImage(getClass().getResource("calculator.jpg"))；setIconImage(image);//左上角图片设置setSize(360,250)；setLocation(400,300)；setBackground(Color.LIGHT_GRAY);/背景设置setLayout(newFlowLayout(FlowLayout.CENTER))；setResizable(false);show=newJTextField(31);show.setText("");show.setHorizontalAlignment(SwingConstants.RIGHT);//文本框内容右对齐show.setEditable(false);add(show);dispMain=newPanel();add(dispMain);buttonconnect=newJButton("连接服务器")；labelconnect=newJLabel("");add(buttonconnect);add(labelconnect);dispMain.setLayout(newGridLayout(1,2,10,10));dispLeft=newPanel();dispMain.add(dispLeft);dispLeft.setLayout(newGridLayout(4,3,3,3));dispRight=newPanel();dispMain.add(dispRight);dispRight.setLayout(newGridLayout(4,3,3,3));b=newJButton[10];intl;for(l=9;l>=0;l--){ //0-9数字按钮b[l]=newJButton(String.valueOf(l));b[l].setForeground(Color.BLUE);dispLeft.add(b[l]);b[l].addActionListener(this);//监听设置b[l].setFocusPainted(false);//去掉焦点框}jia=newJButton("+");jian=newJButton("-");cheng=newJButton("*");chu=newJButton("/");xy=newJButton("xAy");cos=newJButton("cos");sin=newJButton("sin");ln=newJButton("ln");//ce=newJButton("CE");〃清除equ=newJButton("=");〃等号bfh=newJButton("%");〃求模point=newJButton(".");〃小、数点zf=newJButton("+/-");//正负号sqrt=newJButton("V");//根号jia.setFocusPainted(false);//去掉焦点框jian.setFocusPainted(false);//去掉焦点框cheng.setFocusPainted(false);//去掉焦点框chu.setFocusPainted(false);//去掉焦点框xy.setFocusPainted(false);//去掉焦点框cos.setFocusPainted(false);//去掉焦点框sin.setFocusPainted(false);//去掉焦点框ln.setFocusPainted(false);//去掉焦点框ce.setFocusPainted(false);//去掉焦点框equ.setFocusPainted(false);//去掉焦点框bfh.setFocusPainted(false);//去掉焦点框point.setFocusPainted(false);//去掉焦点框zf.setFocusPainted(false);//去掉焦点框sqrt.setFocusPainted(false);//去掉焦点框buttonconnect.setFocusPainted(false);//去掉焦点框//右面板运算符按钮dispRight.add(chu);dispRight.add(sqrt);dispRight.add(ln);dispRight.add(cheng);dispRight.add(sin);dispRight.add(bfh);dispRight.add(jian);dispRight.add(cos);dispRight.add(ce);dispRight.add(jia);dispRight.add(xy);dispRight.add(equ);//左面板正负号/小数点按钮dispLeft.add(zf);dispLeft.add(point);//按钮监听设置ce.addActionListener(this);jia.addActionListener(this);jian.addActionListener(this);cheng.addActionListener(this);chu.addActionListener(this);equ.addActionListener(this);point.addActionListener(this);zf.addActionListener(this);sqrt.addActionListener(this);bfh.addActionListener(this);sin.addActionListener(this);cos.addActionListener(this);xy.addActionListener(this);ln.addActionListener(this);buttonconnect.addActionListener(this);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setVisible(true);d1=0.0;d2=0.0;op=0;}publicvoidrun(){}publicvoidactionPerformed(ActionEvente){if(e.getSource()==look){newlookJFrame();}//查看日志if(e.getSource()==caltuxing){//图形画板mydrawsmyapp=newmydraws();myapp.setSize(380,300);myapp.setLocation(400,300);myapp.setVisible(true);}if(e.getSource()==background){〃背景设置Colorcolor=JColorChooser.showDialog(((Component)e.getSource()).getParent(),"自定义",Color.LIGHT_GRAY);getContentPane().setBackground(color);}if(e.getSource()==word){〃放大按钮setSize(550,280);show.setColumns(47);inti=0;for(i=0;i<=9;i++){b[i].setFont(newFont("宋体",Font.PLAIN,20));}jia.setFont(newFont("宋体",Font.PLAIN,20));jian.setFont(newFont("宋体",Font.PLAIN,20));cheng.setFont(newFont("宋体",Font.PLAIN,20));chu.setFont(newFont("宋体",Font.PLAIN,20));xy. setFont(newFont('宋体",Font.PLAIN,20));cos.setFont(newFont("宋体",Font.PLAIN,20));sin.setFont(newFont("宋体",Font.PLAIN,20));ln.setFont(newFont("宋体",Font.PLAIN,20));ce.setFont(newFont("宋体",Font.PLAIN,20));equ.setFont(newFont("宋体",Font.PLAIN,20));bfh.setFont(newFont("宋体",Font.PLAIN,20));point.setFont(newFont("宋体",Font.PLAIN,20));zf. setFont(newFont('宋体",Font.PLAIN,20));sqrt.setFont(newFont("宋体",Font.PLAIN,20));}if(e.getSource()==close){System.exit(0);}//关闭//作者if(e.getSource()==version){JOptionPane.showMessageDialog(null,"交互式计算器\nJava实验程序作业\n 作者:****\n兰州大学12电子商务");}//连接服务器if(e.getSource()==buttonconnect){try{if(socket.isConnected()){}else{InetAddressaddress=lnetAddress.getByName("");〃此类表示互联网协议(IP)地址。InetSocketAddress socketAddress=newInetSocketAddress(address.getLocalHost(),4444);//getLocalHost(返回本地主机socket.connect(socketAddress);//connect(SocketAddressendpoint)将此套接字连接到服务器in=newDataInputStream(socket.getInputStream());//socket返回输入流out=newDataOutputStream(socket.getOutputStream());//socket返回输出流labelconnect.setText("已连接到服务器")；thread.start();}}catch(IOExceptionee){}}//正负if(e.getSource()==zf){if(show.getText().toString().equals(""))show.setText("-");elseif(show.getText().toString().equals("-"))show.setText("");else{try{d1=Double.parseDouble(show.getText());d1=-d1;Stringdd=""+d1;dd=dd.substring(0,dd.length()-2);show.setText(dd);}catch(Exceptionee){}}}//小数点if(e.getSource()==point){intf;Stringsshow=show.getText();if((f=sshow.indexOf('.'))!=-1)〃若已存在小数点JOptionPane.showMessageDialog(null,"小数点已存在！")；else{//不存在小数点if(sshow.equals(""))show.setText("0.");else{if(sshow.equals("-"))show.setText("-0.");elseshow.setText(show.getText()+".");}}}//清除if(e.getSource()==ce){show.setText("");}//加法运算符if(e.getSource()==jia){opp="+";try{d1=Double.parseDouble(show.getText());op=0;show.setText("");}catch(Exceptionee){}}//减法运算符if(e.getSource()==jian){opp="-";try{d1=Double.parseDouble(show.getText());op=1;show.setText("");}catch(Exceptionee){}}//乘法运算符if(e.getSource()==cheng){opp="*";try{d1=Double.parseDouble(show.getText());op=2;show.setText("");}catch(Exceptionee){}}//除法运算符if(e.getSource()==chu){opp="/";try{d1=Double.parseDouble(show.getText());op=3;show.setText("");}catch(Exceptionee){}}//////////////////////服务器运算的运算符//////////////////////x的y次方if(e.getSource()==xy){opp="xAy";try{d1=Double.parseDouble(show.getText());op=5;show.setText("");}catch(Exceptionee){}}//cos运算符if(e.getSource()==cos){opp="cos";try{d1=Double.parseDouble(show.getText());op=6;show.setText("");}catch(Exceptionee){}}//sin运算符if(e.getSource()==sin){opp="sin";try{d1=Double.parseDouble(show.getText());op=7;show.setText("");}catch(Exceptionee){}}//ln运算符if(e.getSource()==ln){opp="ln";try{d1=Double.parseDouble(show.getText());op=8;show.setText("");}catch(Exceptionee){}}//百分比运算符if(e.getSource()==bfh){opp="%";try{d1=Double.parseDouble(show.getText());op=9;show.setText("");}catch(Exceptionee){}}//根号运算符if(e.getSource()==sqrt){opp="V";try{d1=Double.parseDouble(show.getText());op=4;show.setText("");}catch(Exceptionee){}}/ p.//等号if(e.getSource()==equ){inta,b=1;//a的值用于服务器端的计算，传到服务器端，不同的值代表不同的运算符try{d2=Double.parseDouble(show.getText());switch(op){case0:result=d1+d2;break;case1:result=d1-d2;break;case2:result=d1*d2;break;case3:if(d2==0){JOptionPane.showMessageDialog(null,‘除数不能为零，请重输");b=0;}elseresult=d1/d2;break;case4:if(d2<=0){JOptionPane.showMessageDialog(null,‘根号数值不能小于零，请重输");b=0;}elseresult=Math.sqrt(d2);break;case5: //xAya=5;out.writeInt(a);out.writeDouble(d1);out.writeDouble(d2);try{result=in.readDouble();}catch(IOExceptione1){labelconnect.setText(与服务器已断开");}break;case6://cosa=6;out.writeInt(a);out.writeDouble(d2);try{result=in.readDouble();}catch(IOExceptione2){labelconnect.setText(与服务器已断开");}break;case7://sina=7;out.writeInt(a);out.writeDouble(d2);try{result=in.readDouble();}catch(IOExceptione3){labelconnect.setText(与服务器已断开");}break;case8://lna=8;if(d2<=0){JOptionPane.showMessageDialog(null,‘数值需大于零，请重输");b=0;}else{out.writeInt(a);out.writeDouble(d2);try{result=in.readDouble();}catch(IOExceptione4){labelconnect.setText(‘与服务器已断开");}}break;case9://bfha=9;out.writeInt(a);out.writeDouble(d1);out.writeDouble(d2);try{result=in.readDouble();}catch(IOExceptione5){labelconnect.setText(与服务器已断开");}break;default:}if(b==1)show.setText(String.valueOf(result));elseshow.setText("");a=1;//a=1代表传到服务器处进行保存到日志中out.writeInt(a);out.writeDouble(d1);out.writeDouble(d2);out.writeUTF(opp);out.writeDouble(result);}catch(Exceptionee1){}}////////////////////数值0-9if(e.getSource()==b[0]){if(!(show.getText().equals("0")||show.getText().equals("-0")))show.setText(show.getText()+"0");}if(e.getSource()==b[1]){if(show.getText().equals("0"))show.setText("1");else{if(show.getText().equals("-0"))show.setText("-1");elseshow.setText(show.getText()+"1");}}if(e.getSource()==b[2]){if(show.getText().equals("0"))show.setText("2");else{if(show.getText().equals("-0"))show.setText("-2");elseshow.setText(show.getText()+"2");}}if(e.getSource()==b[3]){if(show.getText().equals("0"))show.setText("3");else{if(show.getText().equals("-0"))show.setText("-3");elseshow.setText(show.getText()+"3");}}if(e.getSource()==b[4]){if(show.getText().equals("0"))show.setText("4");else{if(show.getText().equals("-0"))show.setText("-4");elseshow.setText(show.getText()+"4");}}if(e.getSource()==b[5]){if(show.getText().equals("0"))show.setText("5");else{if(show.getText().equals("-0"))show.setText("-5");elseshow.setText(show.getText()+"5");}}if(e.getSource()==b[6]){if(show.getText().equals("0"))show.setText("6");else{if(show.getText().equals("-0"))show.setText("-6");elseshow.setText(show.getText()+"6");}}if(e.getSource()==b[7]){if(show.getText().equals("0"))show.setText("7");else{if(show.getText().equals("-0"))show.setText("-7");elseshow.setText(show.getText()+"7");}}if(e.getSource()==b[8]){if(show.getText().equals("0"))show.setText("8");else{if(show.getText().equals("-0"))show.setText("-8");elseshow.setText(show.getText()+"8");}}if(e.getSource()==b[9]){if(show.getText().equals("0"))show.setText("9");else{if(show.getText().equals("-0"))show.setText("-9");elseshow.setText(show.getText()+"9");}}}publicstaticvoidmain(Stringargs[]){newCalculatorClient();}}//查看日志lookJFrame类classlookJFrameextendsJFrame{privateJTextAreatxt;privateContainercon;publiclookJFrame(){super("计算器日志")；con=this.getContentPane();finalImageimage=getToolkit().getImage(getClass().getResource("27.jpg"))；//finalImageiconimg=newlmagelcon("H:/星空物语/java实验/Java图标/19.jpg");txt=newJTextArea(){publicvoidpaintComponent(Graphicsg){g.drawlmage(image,0,0,null);super.paintComponent(g);}};//文本域txt.setOpaque(false);//设置为透明add(txt);try{FileReaderfile=newFileReader("calculate.log");BufferedReaderin=newBufferedReader(file);Strings="calculate.log";txt.append(s+"\n");while((s=in.readLine())!=null){txt.append(s+"\n");}in.close();file.close();}catch(IOExceptionexp){txt.setText("无此文件”)；}setSize(600,400);setLocation(270,100);setVisible(true);}}//服务器端importjava.io.*;import.*;importjava.util.*;importjava.text.*;publicclassCalculatorServer{publicstaticvoidmain(Stringargs[]){ServerSocketserver=null;ServerThreadthread;Socketclient=null;System.out.println("\n---计算器服务器---\n");while(true){try{server=newServerSocket(4444);}catch(IOExceptione1){System.out.println('正在监听")；}try{client=server.accept();//server返回和客户端相连接的SocketSystem.out.println("客户的地址:"+client.getlnetAddress());}catch(IOExceptione){System.out.printlnC正在等待客户")；}if(client!=null){newServerThread(client).start();}else{continue;}}}}classServerThreadextendsThread{Socketsocket;DataOutputStreamout=null;DatalnputStreamin=null;Strings=null;FileWriterfile;BufferedWriteroutfile;ServerThread(Sockett){try{file=newFileWriter("calculate.log",true);outfile=newBufferedWriter(file);}catch(Exceptionee){}socket=t;try{in=newDataInputStream(socket.getInputStream());//socket返回输入流out=newDataOutputStream