import java.io.*; 
import java.net.*; 

public class SClient 
{ 
 public static void main(String[] args) 
{ 

 String s=null;
 Socket mysocket;
 DataInputStream    in=null;
 DataOutputStream   out=null;

try 
{ 
mysocket = new Socket("localhost",4321); 
in = new DataInputStream(mysocket.getInputStream()); 
out = new DataOutputStream(mysocket.getOutputStream());  
out.writeUTF("我是客戶機(jī)，向你請(qǐng)求連接。"); 
while (true)
 {
 	s=in.readUTF();
    if(s!=null) break;
 }
mysocket.close();
}
catch(IOException e){System.out.println("無(wú)法連接");}
System.out.println(s);
}
}