prime_number.java

import java.util.Scanner; 
class primeNumber { 
	public static void main(String[] args) { 
		Scanner scanner = new Scanner(System.in); 
		System.out.print("Enter your input number:"); 
		int n = scanner.nextInt();
		int j = 2;
		int result = 0;
  	while (j <= n / 2)
  	{
      if (n % j == 0)
        {
         			result = 1;
      			}
		  j++;
  	}
  	if (result == 1)
  	{
      			System.out.println("Not a prime number");
  		}
    else
    {
      System.out.println("Input number is a prime number");
    }
} 
}