﻿ Java exercises: Check whether a number is a Pronic Number or Heteromecic Number or not - w3resource # Java Exercises: Check whether a number is a Pronic Number or Heteromecic Number or not

## Java Numbers: Exercise-13 with Solution

Write a Java program to check whether a number is a Pronic Number or Heteromecic Number or not.

A pronic number is a number which is the product of two consecutive integers, that is, a number of the form n(n + 1).
The first few pronic numbers are:
0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 110, 132, 156, 182, 210, 240, 272, 306, 342, 380, 420, 462 … etc.

Test Data
Input a number : 110

Pictorial Presentation: Sample Solution:

Java Code:

``````import java.util.Scanner;

public class Example13 {

public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.print("Input a number : ");
int num = sc.nextInt();
int ans = 0;

for(int i=0; i<num; i++)
{
if(i*(i+1) == num)
{
ans = 1;
break;
}
}

if(ans == 1)
System.out.println("Pronic Number.");
else
System.out.println("Not a Pronic Number.");
}
}
```
```

Sample Output:

```Input a number : 110
Pronic Number.
```

Flowchart: Java Code Editor: