To Check Prime Number

package com.tutorial4u;

import java.util.Scanner;

public class PrimeNumber {

       public static void main(String[] args) {

             int temp ;

             boolean isPrimeNumber = true;

             System.out.print("Please enter a number to check prime : ");

             Scanner sc = new Scanner(System.in);

             int num = sc.nextInt();

             for(int i=2;i<num/2;i++){

                    temp = num%i;

                    if(temp==0){

                           isPrimeNumber = false;

                           break;

                    }

             }

             if(isPrimeNumber){

                    System.out.println(num +" is Prime Number");

             }else{

                    System.out.println(num +" is not Prime Number");

             }

       }

}

Output:

Please enter a number to check prime : 23

23 is Prime Number