Beispiel #1
0
  public static void main(String[] argv) {

    Primes primes = Primes.Instance;

    int[] testInput = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20};
    int[] testOutput = {-1, -1, 2, 3, 3, 5, 5, 7, 7, 7, 7, 11, 11, 13, 13, 13, 13, 17, 17, 19, 19};

    int testIn, testOut, result, errors = 0;

    for (int cc = 0, count = testInput.length; cc < count; cc++) {
      testIn = testInput[cc];
      testOut = testOutput[cc];

      result = primes.floor(testIn);

      if (result == testOut)
        System.out.println(String.format("OK primes.floor(%d) => (prime %d)", testIn, result));
      else {
        errors += 1;
        System.out.println(
            String.format(
                "ER primes.floor(%d) => (prime %d) != (expected %d)", testIn, result, testOut));
      }
    }

    if (0 < errors) {
      System.out.println(String.format("Error: count %d", errors));
      System.exit(1);
    } else {
      System.out.println("OK Primes passed with no errors");
      System.exit(0);
    }
  }
Beispiel #2
0
 public void run() {
   BigInteger start = Primes.random(numDigits);
   for (int i = 0; i < numPrimes; i++) {
     start = Primes.nextPrime(start);
     synchronized (this) {
       primesFound.add(start);
     }
   }
 }
Beispiel #3
0
 public static final int Floor(int num) {
   return Instance.ceil(num);
 }
Beispiel #4
0
 public static final int Get(int idx) {
   return Instance.get(idx);
 }