JAVA RECORD PROGRAM TO CHECK PRIME OR NOT

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 class Prime {


  public static void main(String[] args) {


    int num = 29;

    boolean flag = false;


    // 0 and 1 are not prime numbers

    if (num == 0 || num == 1) {

        flag = true;

    }


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


      // condition for nonprime number

      if (num % i == 0) {

        flag = true;

        break;

      }

    }


    if (!flag)

      System.out.println(num + " is a prime number.");

    else

      System.out.println(num + " is not a prime number.");

  }

}

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