prime.java

//this program input from user and identifies whether the number is prime or non-prime
import java.util.*;
public class prime {
    public static boolean isPrime(int num) {
        if (num <= 1) {
            return false;
        }
        for (int i = 2; i < num; i++) {
            if (num % i == 0) {
                return false;
            }
        }
        return true;
    }

    public static void main(String[] args) {
        int num;
        System.out.println("Enter a number: ");
        Scanner scanner = new Scanner(System.in);
        num = scanner.nextInt();

        if (isPrime(num)) {
            System.out.println(num + " is a prime number");
        } else {
            System.out.println(num + " is not a prime number");
        }
    }
}