assignment3/src/assignment3/TwinsPrime.java

/*
 * Jacob John
 */

package assignment3;

import java.util.Scanner;
import primespackage.Prime;

public class TwinsPrime {
	public static void main(String args[]) {
		int i;

		// take input
		Scanner sc = new Scanner(System.in);
		System.out.print("Enter first number: ");
		int n1 = sc.nextInt();
		System.out.print("Enter second number: ");
		int n2 = sc.nextInt();
		sc.close();

		System.out.println("Twin prime numbers are: ");
		// checking twins prime
		for (i = n1; i <= n2; i++) {
			if (Prime.checkPrime(i) & Prime.checkPrime(i + 2) & i > 1) {
				System.out.println("(" + i + "," + (i + 2) + ")");
			}
		}
	}
}