新澳门精准资料大全管家婆料_Java编程技巧：如何交换Map的键和值

publicstaticInteger [] indexSorted(intarr[]){ //对数组arr进行索引排序

import java.io.*; import java.net.*; public class TCPServer { public static void main(String[] args) throws IOException { int port = 8080; ServerSocket serverSocket = new ServerSocket(port); System.out.println("Server started at port " + port); Socket clientSocket = serverSocket.accept(); // 等待客户端连接 System.out.println("Client connected: " + clientSocket.getInetAddress().getHostAddress()); BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); String inputLine; while ((inputLine = in.readLine()) != null) { System.out.println("Received from client: " + inputLine); } clientSocket.close(); serverSocket.close(); } }

在这个示例中新澳门精准资料大全管家婆料，MyClass 类使用了 log4j 库来记录日志/。要使这段代码正常工作，你需要将 log4j 的 JAR 文件添加到项目的构建路径中。这样，当 Eclipse 编译 MyClass.java 时，它就能够找到并链接到 log4j 的类。

System.out.println("Product: " + product);

import java.lang.reflect.Field;