How to encode URL content in Java?

URLEncoder is a utility class for HTML form encoding. This class contains static methods for converting a String to the application/x-www-form-urlencoded MIME format. Below example shows how to encode URL content in java. This class is very useful to encode query string values.

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();
        }
    }
}