public class Javaexcercise {
 
   public static void main(String[] args)
    {
        String str = "TECHSTUDY - The Complete Debugging Solution";
 
        // Get a substring of the above string starting from
        // index 10 and ending at index 26.
        String newstr = str.substring(12, 43);
 
        // Display the two strings for comparison.
        System.out.println("Old String = " + str);
        System.out.println("New String = " + newstr);
    }
}

Result