public class SubStringJavaExample {

    public static void main(String[] args) {

        String string = "Java Substring";

        // simple
        String string1 = string.substring(2);

        System.out.println("Output1 :"+string1);

        // advance
        String string2 = string.substring(2,8);

        System.out.println("Output2 :"+string2);
    }
}

Output1 :va Substring
Output2 :va Sub