小编Kev*_*ear的帖子

我尝试使用eclipse在mac中运行Java套接字,但它不起作用.我收到了这个错误:

Exception in thread "main" java.net.BindException: Permission denied

    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.PlainSocketImpl.socketBind(PlainSocketImpl.java:521)
    at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:414)
    at java.net.ServerSocket.bind(ServerSocket.java:326)
    at java.net.ServerSocket.<init>(ServerSocket.java:192)
    at java.net.ServerSocket.<init>(ServerSocket.java:104)
    at server.MessageServer.main(MessageServer.java:11)

我怎样才能让它运行？

package server; //ChatServer 
import java.io.*; 
import java.net.*; 

public class MessageServer { 

public static void main (String args[]) throws IOException { 
    int port = 100; 
    ServerSocket server = new ServerSocket (port); 
    System.out.println("Server is started!"); 

    while (true) { 
        Socket client = server.accept (); 
        System.out.println ("Accepted from " + client.getInetAddress ()); 
        MessageHandler handler = new MessageHandler (client); 
        handler.start(); 
        } …

如何从该函数中删除最后一个逗号。

   for(var i = 0; i <= 100; i++) { 
          if(i % 2 === 0) { 
            div.innerHTML += l + ","; 
          } 
         else { 
            div.innerHTML += " ";
         }
   }