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PrimeDirective.java

// Import statement:
import java.util.ArrayList;

class PrimeDirective {
  
  // Add your methods here:

  public boolean isPrime(int number) {
    if(number == 2) {
      return true;
    } else if (number < 2) {
      return false;
    }
   for(int i = 2; i < number; i++) {
     if(number % i == 0) {
       return false;
     }
   }
   return true;
  }

  public ArrayList<Integer> onlyPrimes(int[] number) {
    ArrayList<Integer> primes = new ArrayList<Integer>();
    for (int prime : number) {
      isPrime(number);
    }
    return primes;
  }
  
  
  public static void main(String[] args) {

    PrimeDirective pd = new PrimeDirective();
    int[] numbers = {6, 29, 28, 33, 11, 100, 101, 43, 89};
    System.out.println(pd.isPrime(7));
    System.out.println(pd.isPrime(28));
    System.out.println(pd.isPrime(2));
    System.out.println(pd.isPrime(0));
     System.out.println(pd.onlyPrimes(numbers));


  }  

}