Function IsPrimeTarea Learn programming Java

Lesson:

Functions


Exercise:

Function IsPrimeTarea 10


Objetive:

Create a function named "IsPrime", which receives an integer number and retuns true if it is prime, or false if it is not:

if (isPrime(127)) ...


Code:

public class Main
{
	public static boolean IsPrime(int n)
	{
		for (int i = 2; i < n; i++)
		{
			if (n % i == 0)
			{
				return false;
			}
		}

		return true;
	}

	public static void main(String[] args)
	{
		if (IsPrime(127))
		{
			System.out.println("127 is a prime number");
		}
		else
		{
			System.out.println("127 is NOT a prime number");
		}

		if (IsPrime(1000003))
		{
			System.out.println("1000003 is a prime number");
		}
		else
		{
			System.out.println("1000003 is NOT a prime number");
		}
	}
}