税率核算Java程序设计

//客户端

import java.net.*;

import java.io.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.event.*;

class PayrollClient extends JFrameimplements ActionListener{

         privateJLabel title;

         privateJLabel name;

         privateJLabel salary;//应发工资

         privateJLabel insurancesandfund;//三险一金

         privateJLabel tax;

         privateJButton gtax;

         privateJTextField nt,st,it,tt;

         private     Socket socket;

         private     DataInputStream in=null;

         private     DataOutputStream out=null;

         publicPayrollClient(){

                   super("税务核算");

                   socket=newSocket();

                   try{

                     InetAddressaddress=InetAddress.getByName("127.0.0.1");//此类表示互联网协议(IP) 地址。

                     InetSocketAddress socketAddress=newInetSocketAddress(address,4444);//getLocalHost() 返回本地主机

                     socket.connect(socketAddress);//   connect(SocketAddress endpoint)  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

           }catch(Exception ee){}

                   title=newJLabel("税额核算单");

                   name=newJLabel("姓名:");

                   salary=newJLabel("应发工资:");

                   insurancesandfund=newJLabel("三险一金:");

                   tax=newJLabel("应交税额:");

                   gtax=newJButton("核算");

                   nt=newJTextField();

                   st=newJTextField();

                   it=newJTextField();

                   tt=newJTextField();

      &