Question

Something is wrong with my code that i can’t figure it out, will you help me to find my mistake? Thank you!

/// Calculate Prime
private static int countPrimes(int number){
    int count =0;
    for(int i=1; i<=MAX_PRIME; i++) {
        if(isPrime(i)){
        count++;
        }
    }
    System.out.println("Exactly "+  count + " prime numbers exist between "+number + " and 1000."); 
return number;
}

here is my result:
Exactly 180 prime numbers exist between 1 and 1000. Which is wrong and has to be 168!!!

Answer 1

What the function isPrice()? is it a function to check that a integer number is prime number or not? I think that if you have it, you just need to do like this:

 for(int i=1; i<=MAX_PRIME; i++) {
     if(isPrime(i)){
        count++
     }
 }
 return count;