Cognizant_Q10.java

package technical;

/*Problem Statement – Chaman planned to choose a four digit lucky number for his car. His lucky numbers are 3,5 and 7. Help him find the number, whose sum is divisible by  3 or 5 or 7. Provide a valid car number, Fails to provide a valid input then display that number is not a valid car number. 

Note : The input other than 4 digit positive number[includes negative and 0] is considered as invalid.

Refer the samples, to read and display the data.

Sample Input 1:

Enter the car no:1234
Sample Output 1:

Lucky Number
Sample Input 2:

Enter the car no:1214
Sample Output 2:

Sorry its not my lucky number
Sample Input 3:

Enter the car no:14
Sample Output 3:

14 is not a valid car number*/

import java.util.*;
public class Cogni10 {
static void Check(int a)
{
	if(a>=1000 && a<=9999)
	{
		int sum=0;
	    while(a!=0)
	    {
	    	sum=sum+a%10;
	    	a=a/10;
	    }
	    if(sum%3==0 || sum%5==0 || sum%7==0)
	    	System.out.println("A Lucky Number");
	    else
	    	System.out.println("Its not my lucky number");
	}
	else
		System.out.println(a+"is not a valid car number");
		
}
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		System.out.println("Enter the car number: ");
		int a =sc.nextInt();
		Check(a);
	}

}