Write a static method that takes int number as input argument and returns the sum of the digits of that number.

public CheckSum {


public static void main (String []args){

System.out.println(digitSum(45));

public static int digitSum(int number) {
  
 int sum = 0;
         
        while (number != 0)
        {
            sum = sum + number % 10;
            number = number/10;
        }
     
    return sum;
 }
}
}

Check if a given number is perfect square in Java