1  import java.awt.Graphics;

  2  import javax.swing.JComponent;

  3  

  4  /**

  5     A component that displays the current state of the selection sort algorithm.

  6  */

  7  public class SelectionSortComponent extends JComponent

  8  {

  9     private SelectionSorter sorter;

 10  

 11     /**

 12        Constructs the component.

 13     */

 14     public SelectionSortComponent()

 15     {

 16        int[] values = ArrayUtil.randomIntArray(30, 300);

 17        sorter = new SelectionSorter(values, this);

 18     }

 19  

 20     public void paintComponent(Graphics g)

 21     {

 22        sorter.draw(g);

 23     }

 24  

 25     /**

 26        Starts a new animation thread.

 27     */

 28     public void startAnimation()

 29     {

 30        class AnimationRunnable implements Runnable

 31        {

 32           public void run()

 33           {

 34              try

 35              {

 36                 sorter.sort();

 37              }

 38              catch (InterruptedException exception)

 39              {

 40              }

 41           }

 42        }

 43        

 44        Runnable r = new AnimationRunnable();

 45        Thread t = new Thread(r);

 46        t.start();

 47     }

 48  }

 49