Question

3. Write a program to input a number. Check and display whether it is a Pronic number or not.
(Pronic number is the number which is the product of two consecutive integers.)​

Answer 1

Answer:

import java.util.Scanner;

public class KboatPronicNumber

{

public void pronicCheck() {

Scanner in = new Scanner(System.in);

System.out.print("Enter the number to check: ");

int num = in.nextInt();

boolean isPronic = false;

for (int i = 1; i <= num - 1; i++) {

if (i * (i + 1) == num) {

isPronic = true;

break;

}

}

if (isPronic)

System.out.println(num + " is a pronic number");

else

System.out.println(num + " is not a pronic number");

}

}

Explanation:

i have taken example as:-

12 = 3 * 4

20 = 4 * 5

42 = 6 * 7