URL content in Java and IP address in Java

How to encode URL content in Java

package com.myjava.url;

import java.io.UnsupportedEncodingException;

import java.net.URLEncoder;

public class MyUrlEncode

{

public static void main(String a[])

{

    try

{

            System.out.println(URLEncoder.encode("String with spaces", "UTF-8"));

            System.out.println(URLEncoder.encode("special chars: &%*", "UTF-8"));

        }

        catch (UnsupportedEncodingException ex)

        {

            ex.printStackTrace();

        }

    }

}

How to decode URL content in Java

package com.myjava.url;

import java.io.UnsupportedEncodingException;

import java.net.URLDecoder;

public class MyURLDecode

{

 public static void main(String a[])

{

        try

      {

            System.out.println(URLDecoder.decode("special+chars%3A+%26%25*+", "UTF-8"));

        }

         catch (UnsupportedEncodingException ex)

         {

            ex.printStackTrace();

        }

    }

}

How to get my machine or local host IP address in Java

package com.myjava.ip;

import java.net.InetAddress;

import java.net.UnknownHostException;

public class MyIpAddress

{

 public static void main(String a[])

{

     try

    {

            InetAddress ipAddr = InetAddress.getLocalHost();

            System.out.println(ipAddr.getHostAddress());

        }

         catch (UnknownHostException ex)

         {

            ex.printStackTrace();

        }

    }

}

How to get IP address of a Host in Java

package com.myjava.ip;

import java.net.InetAddress;

import java.net.UnknownHostException;

public class MyIpByHost

{

public static void main(String a[])

{

 try

     {

            InetAddress host = InetAddress.getByName("www.java2novice.com");

            System.out.println(host.getHostAddress());

        }

        catch (UnknownHostException ex)

        {

            ex.printStackTrace();

        }

    }

}

How to get Host name by IP address in Java

package com.myjava.ip;

import java.net.InetAddress;

import java.net.UnknownHostException;

public class MyHostName

{

public static void main(String a[])

{

 try

      {

            InetAddress host = InetAddress.getByName("72.167.232.155");

            System.out.println(host.getHostName());

        }

         catch (UnknownHostException ex)

         {

            ex.printStackTrace();

        }

    }

}