Java - Happy Number Program.

 


 Happy Number Program.


import java.util.Scanner;
class  HappyNum
{
    public static void main(String[] args)
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter Number");
        int num=sc.nextInt();
        int rem=0;
        int sqr=0;
        while(num>9)
        {
            int sum=0;
            while(num>0)
            {
                rem=num%10;
                sqr=rem*rem;
                sum=sum+sqr;
                num=num/10;
            }
            num=sum;
        }
        if(num==1)
        {
            System.out.println("Happy Number");
        }
        else
        {
            System.out.println("Not Happy");
        }
    }
}

 

Location: 14/A/6/4, Thitenagar Lane No 6, Thite Vasti, Kharadi, Pune, Maharashtra 411014, India

Popular posts from this blog

When a method in a subclass overrides a method in superclass, it is still possible to call the overridden method using super keyword - Hacker Rank Solution.

When a method in a subclass overrides a method in superclass, it is still possible to call the overridden method using   super   keyword. If you write   super.func()   to call the function   func() , it will call the method that was defined in the superclass. You are given a partially completed code in the editor. Modify the code so that the code prints the following text: Hello I am a motorcycle, I am a cycle with an engine. My ancestor is a cycle who is a vehicle with pedals. SOLUTION : - import java.io.*; import java.util.*; class Cycle {     String define_me() {         return "a vehicle with pedals." ;     } } class Motorcycle extends Cycle {     @Override     String define_me() {         return "a cycle with an engine." ;     }     Motorcycle() {         System.out.println( "Hello I am a motorcycle, I am " + define_me());   ...
Read more

You are given a date. You just need to write the method getDay which returns the day on that date - Hacker Rank Solution.

Image
The  Calendar class   is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week. You are given a date. You just need to write the method,  , which returns the  day  on that date. To simplify your task, we have provided a portion of the code in the editor. Function Description Complete the  findDay  function in the editor below. findDay  has the following parameters: int:  month int:  day int:  year Returns string:  the day of the week in capital letters Input Format A single line of input containing the space separated month, day and year, respectively, in   MM DD YYYY    format. Sample Input 08 05 2015 Sample Output WEDNESDAY Explanation The day on August 5 th  2015 was  WEDNESDAY . SOLUTION :...
Read more