printing out prime numbers from array

Question

I\'d like to print out all prime numbers from an array with method. I can do it with one int but don\'t know how to return certain numbers from array. Thanks for help!

Answer 1

Assuming you have:

• One array of integers, with some being prime and some being not prime.
• A function for testing if one of those numbers is prime.

Simply iterate over the array, and for each number:

if (isPrime(n)) {
    system.out.println(n);
}

You probably don't want to try and do multiple ints at once, one at a time should be alot simpler to code.