Java applets error "Javaserver.java 1 Error : Need class, interface , or enum"

I run in the command window of the test Helloworld is running , and then I run the following piece of code will be wrong .
I run in eclipse is also possible that the command window to die, I was a beginner , expert guidance !
-> javac helloworld.java
-> java helloworld
successfully display Hello World!

I lost
-> javac Javaserver.java
Javaserver.java 1 Error : Need class, interface , or enum
mport java.net. *;

  public class helloworld
  {
  	public static void main(String[] args)
  	{
  		System.out.println("Hello World!!");
  	}
  }
  

  import java.net.*; 
  import java.io.*; 
  
  public class Javaserver 
  { 
      public static void main(String args[]) 
      { 
          try 
          { 
              boolean flag=true; 
              Socket clientSocket=null; 
              String inputLine; 
              int c; 
  
              ServerSocket sSocket=new ServerSocket(8018); 
              System.out.println("Server listen on:"+sSocket.getLocalPort()); 
  
              while(flag) 
              { 
                  clientSocket=sSocket.accept(); 
                  DataInputStream is= new DataInputStream(new BufferedInputStream(clientSocket.getInputStream())); 
                  OutputStream os=clientSocket.getOutputStream(); 
  
                  while((inputLine=is.readLine())!=null) 
                  { 
                      if(inputLine.equals("stop")) 
                      { 
                          flag=false; 
                          break; 
                      } 
                      else 
                      { 
                          System.out.println(inputLine); 
                          while((c=System.in.read())!=-1) 
                          { 
                              os.write((byte)c); 
                              if(c=='\n') 
                              { 
                                  os.flush();
                                  break; 
                              } 
                          } 
                      } 
  
  
                  } 
                  is.close(); 
                  os.close(); 
                  clientSocket.close(); 
              } 
              sSocket.close(); 
          } 
          catch(Exception e) 
          { 
              System.out.println("Exception :"+ e.getMessage()); 
          } 
      } 
  } 
  

------ Solution ------------------------------------- -------
while ((inputLine = is.readLine ())! = null) {/ / readLine method obsolete,

while ((inputLine = is.readUTF ())! = null) { switch this
------ Solution ----- ---------------------------------------
1. in the command line directory for Javaserver.java
2. then run javac Javaserver.java can be compiled successfully

've tried , the source code is no problem
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  This reply was moderator deleted at 2012-07-24 16:22:04

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