Method isHappy

Java/Happy-Number.java:2–17

(int n)

class HappyNumber {
    public boolean isHappy(int n) {
        int num1, num2; 
   
    num1 = num2 = n; 
    do
    { 
        num1 = SquareSum(num1); 
   
         
        num2 = SquareSum(SquareSum(num2)); 
   
    } 
    while (num1 != num2); 
   
    return (num1 == 1); 
} 


static int SquareSum(int n)