Write a Java program to print the machine IP address

Table of Contents

Introduction

Write a simple Java program to output machine IP address and hostname to the console. InetAddress class is used. import java.net.InetAddress and wrap the code in a try-catch block.

The InetAddress java class provides methods to resolve hostnames to
their IP addresses and vice versa. Below is a sample Java program to print
hostname and IP Address.

Java Program

import java.net.InetAddress;
import java.net.UnknownHostException;

/********************************************
// IPAddressDemo.java
//
// www.TestingDocs.com
********************************************/

public class IPAddressDemo {
 public static void main(String[] args) {
 //try-catch block
 try {
 InetAddress hostMachine = InetAddress.getByName("localhost");
 System.out.println(hostMachine.getHostName()); //Print hostname
 System.out.println(hostMachine.getHostAddress());//Print ipaddress
 }catch(UnknownHostException uhe) {
 uhe.printStackTrace();
 }
 }
}