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嗨我想创建一个服务器/客户端程序,最多需要5个客户端输入一个字符串每个通过多个服务器端线程,这些字符串将被添加到团队类即同一个团队,那么当团队已满时,客户端将断开连接,服务器将等待下一个团队的名称。我的问题在于创建类的一个实例,每个线程更新到.. 即时通讯不知道在哪里声明的类的实例?(它包含一个字符串数组[5]) 我在服务器端的类当前是“TeamServer”,“TeamServerThread”,“team”,“streamSocket”启动类将由多个线程更新的问题
下面是我的“TeamServerThread”,它接受用户字符串并将其添加到另一个字符串中。
import java.io.*;
class TeamServerThread implements Runnable {
static String names ="";
MyStreamSocket myDataSocket;
TeamServerThread(MyStreamSocket myDataSocket) {
this.myDataSocket = myDataSocket;
}
public void run() {
String newName;
try {
newName = myDataSocket.receiveMessage();
/**/ System.out.println("Name Recieved = "+newName);
updateNames(newName);
// now send the names to the requestor
// wait
myDataSocket.sendMessage(names);
myDataSocket.close();
}// end try
catch (Exception ex) {
System.out.println("Exception caught in thread: " + ex);
} // end catch
} //end run
private synchronized void updateNames (String newName) {
names +=newName + "\n";
// this.team.add(newName);
} // end updateNames
} // end Team
这里是我的“团队”类
public class Team
{
public final int TEAM_SIZE = 5;
public String names[] = new String[TEAM_SIZE];
public int num_members = 0;
// waits until five names have arrived
// needs to be synchronized because it can be accessed
// by a number of concurrent threads
synchronized void add(String name)
{
names[num_members] = name;
num_members++;
if (num_members < TEAM_SIZE)
try
{
wait();
}
catch(Exception e) {}
else
try
{
notifyAll();
}
catch(Exception e){}
} // end add
public int Getnum_members()
{
return num_members;
}
} // end Team