java_network_programming_4th/src/SocketInfo.java at master · cristobalc/java_network_programming_4th

24 lines (21 loc) · 733 Bytes

4BF3 8

import java.net.*;

import java.io.*;

public class SocketInfo {

public static void main(String[] args) {

for (String host : args) {

try {

Socket theSocket = new Socket(host, 80);

System.out.println("Connected to " + theSocket.getInetAddress()

+ " on port " + theSocket.getPort() + " from port "

+ theSocket.getLocalPort() + " of "

+ theSocket.getLocalAddress());

} catch (UnknownHostException ex) {

System.err.println("I can't find " + host);

} catch (SocketException ex) {

System.err.println("Could not connect to " + host);

} catch (IOException ex) {

System.err.println(ex);

}

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