Java开发网 - 客户服务对话，代码没有语言错误，逻辑方面有错误！

Topic: 客户服务对话，代码没有语言错误，逻辑方面有错误！

1.客户服务对话，代码没有语言错误，逻辑方面有错误！

Posted by: oath911
Posted on: 2005-05-27 00:24

代码没有语言错误
逻辑方面哪里应该有错误，请哪位大侠指教！！！

客户端：
import java.io.*;
import java.net.*;

class client {
public static void main(String[] args)
throws IOException
{
Socket qq = null;

DataInputStream in = null;
DataInputStream sysin = null;

DataOutputStream out = null;
String s = " Welcome...";
String ins = null;

try
{
qq = new Socket("127.0.0.1",4001);

in = new DataInputStream(qq.getInputStream());
out = new DataOutputStream(qq.getOutputStream());
sysin = new DataInputStream(System.in);
System.out.println Moon

;

while(!s.equals("quit"))
{
s = sysin.readLine();

out.writeBytes Moon

;

if((ins=in.readLine())!=null)
{
System.out.println("server: "+ins);
}

}

}
catch(UnknownHostException e){}
finally
{
in.close();
out.close();
sysin.close();
qq.close();
System.exit(0);
}

}

}

服务器：
import java.io.*;
import java.net.*;

class server {
public static void main(String[] args)
throws IOException
{
ServerSocket ser = null;
Socket qq = null;
DataInputStream in = null;
DataInputStream sysin = null;

DataOutputStream out = null;
String s =" Connect...";
String ins = null;

try
{
ser = new ServerSocket(4001);
qq = ser.accept();

in = new DataInputStream(qq.getInputStream());
out = new DataOutputStream(qq.getOutputStream());
sysin = new DataInputStream(System.in);

System.out.println Moon

;

while(!s.equals("quit"))
{
s = sysin.readLine();

out.writeBytes Moon

; //???????

if((ins=in.readLine())!=null)
{
System.out.println("client: "+ins);
}
}
}
catch(UnknownHostException e){}
finally
{
in.close();
out.close();
sysin.close();
qq.close();
ser.close();
System.exit(0);
}

}

}

请教！！！！！！！！！！！！！！！！！！！！！！！！！