📄 dnslookup.java
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/** * A simple program demonstrating DNS lookup * * Usage: * java DNSLookUp <IP Name> * */import java.io.*;import java.net.*;public class DNSLookUp{ public static void main(String[] args) { if (args.length != 1) { System.err.println("Usage: java DNSLookUp <IP name>"); System.exit(0); } InetAddress hostAddress; try { hostAddress = InetAddress.getByName(args[0]); System.out.println(hostAddress.getHostAddress()); } catch (UnknownHostException uhe) { System.err.println("Unknown host: " + args[0]); } }}
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