Array shuffle

import java.util.Random;
/*from   j  a  v  a  2s .c om*/
public class Main {
  public static void shuffle(final Object[] array) {
    final Random r = new Random();
    final int limit = array.length;
    for (int i = 0; i < limit; ++i) {
      swap(array, i, r.nextInt(limit));
    }
  }

  public static void shuffle(final int[] array) {
    final Random r = new Random();
    final int limit = array.length;
    for (int i = 0; i < limit; ++i) {
      swap(array, i, r.nextInt(limit));
    }
  }

  public static void shuffle(final Object[] array, final long seed) {
    final Random r = new Random(seed);
    final int limit = array.length;
    for (int i = 0; i < limit; ++i) {
      swap(array, i, r.nextInt(limit));
    }
  }

  public static void swap(final Object[] array, final int i, final int j) {
    Object o = array[i];
    array[i] = array[j];
    array[j] = o;
  }

  public static void swap(final int[] array, final int i, final int j) {
    int o = array[i];
    array[i] = array[j];
    array[j] = o;
  }

}