/*
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 */
package lab14_calebfontenot;

/**
 *
 * @author caleb
 */
public class PrimeNumbers {
    public static void main(String[] args)
    {
        System.out.println("The first 50 prime numbers are: \n");
        printPrimeNumbers(50);
    }
    public static void printPrimeNumbers(int numberOfPrimes) {
        final int NUMBER_OF_PRIMES_PER_LINE = 10; // Display 10 per line
        int count = 0;                                                                      // Count the number of prime numbers
        int number = 1;                                                                 // A number to be tested for primeness
        
        //> Repeatedly find prime numbers
        while (count < numberOfPrimes) {
            //>> Print the prime number and increase the count
            if (isPrime(number)) {
                count++; // Increase the count
                if (count % NUMBER_OF_PRIMES_PER_LINE == 0) {
                    //>> Print the number and advance to the new line
                    System.out.printf("%-5d\n", number);
                }
                else {
                            System.out.printf("%-5d", number);
                            }
                }
            //>> Check if the next number is prime
            number++;
            }
        }
    public static boolean isPrime(int number) {
        for (int divisor = 2; divisor <= number / 2; divisor++) {
            if (number % divisor == 0) {
                // If true, number is not prime
                return false;
            }
        }
        return true; // number is prime
    }
}