`public boolean isHappy(int positiveNumber) {
        // repeat the process until the number equals 1
        for(int i = positiveNumber; i !=1; i--) {
            // tracking of those numbers which are replace the number by the sum of the squares of its digits
            int  replaceBySumOfSquare = 0;
            // split the number and do the square of it
            while(positiveNumber > 0) {
            replaceBySumOfSquare += Math.pow(positiveNumber % 10, 2);
            positiveNumber = positiveNumber/10;
        }
            // again update the number for checking weather it true or false
            positiveNumber = replaceBySumOfSquare;
    }

    if(positiveNumber == 1)
      return true;
    else
      return false;
    }
}