Print Prime Triplet Integers between a given range

PrimeTriplet.java

/*
A prime triplet is a collection of three Prime Numbers in the form
(p, p + 2, p + 6) or (p, p + 4, p + 6)

Write a program to input M and N where M < N and , M and N less than 50.
Find and Display all the possible Prime Triplets in the range M and N
where the value of M and N entered by the user.

Eg:
INPUT :
  M = 1
  N = 20

OUTPUT: 
   5  7 11
   7 11 13
  11 13 17
  13 17 19
 */


import java.util.*;

class PrimeTriplet
{
    boolean Validate(int first, int second)
    {
        if(first > second)
        {
            System.out.println("First Number is Greater than the Second one");
            return false;
        }

        if(second >= 50)
        {
            System.out.println("Second one exceeds 50");
            return false;
        }

        if(second >= 50)
        {
            System.out.println("Second one exceeds 50");
            return false;
        }

        if(first < 1 || second < 1)
        {
            System.out.println("Range is less than 1");
            return false;
        }

        if(first == second)
        {
            System.out.println("First number is same as second");
            return false;
        }

        return true;
    }

    boolean IsPrime(int number)
    {
        for(int i = 2; i < number; i++)
            if(number % i == 0)
                return false;

        return true;
    }

    boolean IsTripletPrime(int number)
    {
        PrimeTriplet obj = new PrimeTriplet();

        if(obj.IsPrime(number + 2))
        {
            if(obj.IsPrime(number + 6))
            {
                System.out.print(number + "\t" + (number + 2) + "\t" + (number + 6));
                return true;
            }
        }

        else if(obj.IsPrime(number + 4))
        {
            if(obj.IsPrime(number + 6))
            {
                System.out.print(number + "\t" + (number + 4) + "\t" + (number + 6));
                return true;
            }
        }

        return false;
    }

    public static void main()
    {
        Scanner sc = new Scanner(System.in);

        System.out.println("Enter the first number of the range");
        int first = sc.nextInt();

        System.out.println("Enter the second number of the range");
        int second = sc.nextInt();

        PrimeTriplet obj = new PrimeTriplet();

        if(!obj.Validate(first, second))
            return;

        for(int i = first + 1; i < second - 6; i++)
            if(obj.IsPrime(i))
                if(obj.IsTripletPrime(i))
                    System.out.println();
    }
}