SubStringDemo.java Source code

Introduction

Here is the source code for SubStringDemo.java

Source

/**
 * SubStringDemo.java separates domain name like "@yahoo.com"
 * from email id like "suraj.gupta@yahoo.com"
 *
 */
public class SubStringDemo {
    /**
     * @author suraj.gupta
     */
    public static void main(String[] args) {
        String s = "suraj.gupta@yahoo.com"; // email id in a String
        int IndexOf = s.indexOf("@"); // returns an integer which tells the position of this substring "@" in the parent String "suraj.gupta@yahoo.com"
        String domainName = s.substring(IndexOf); //prints the String after that index
        System.out.println("Taking Domain name from an email id " + domainName);
    }
}