Question

Q: Write a JavaScript program that asks the user to enter a number & check whether the number is multiple of 7 or not using if else statement.​

Answer 1

Answer:

See the answer

Explanation:

import java.io.*;

class GFG

{

// Function to check whether a number is divisible by 7

static boolean isDivisibleBy7(int num)

{

// If number is negative, make it positive

if( num < 0 )

return isDivisibleBy7( -num );

// Base cases

if( num == 0 || num == 7 )

return true;

if( num < 10 )

return false;

// Recur for ( num / 10 - 2 * num % 10 )

return isDivisibleBy7( num / 10 - 2 * ( num - num / 10 * 10 ) );

}

// Driver program

public static void main (String[] args)

{

int num = 616;

if(isDivisibleBy7(num))

System.out.println("Divisible");

else

System.out.println("Not Divisible");

}

}