1  /**

  2     This program demonstrates the heapsort algorithm.

  3  */

  4  public class HeapSortDemo

  5  {  

  6     public static void main(String[] args)

  7     {  

  8        int[] a = ArrayUtil.randomIntArray(20, 100);

  9        ArrayUtil.print(a);

 10        HeapSorter sorter = new HeapSorter(a);

 11        sorter.sort();

 12        ArrayUtil.print(a);

 13     }

 14  }