摘要：
public class HungrySingleton { private HungrySingleton() { } private static HungrySingleton hungrySingleton = new HungrySingleton(); public static HungrySingleton getInstance(){ ... 阅读全文
摘要：
public class ServerSocketTest { public static void main(String[] args) { try { ServerSocket serverSocket = new ServerSocket(9999); ExecutorService executorService... 阅读全文