/* CounterIncreaser.java
** An instance of this odd class is capable, via its run() method, of 
** incrementing a given Counter a specified number of times.  Both the
** Counter and the number of times to increment it are provided to the
** constructor.  (Thus, each time run() is called, that Counter object
** will have its increment() method applied to it the specified number 
** of times.)
*/
public class CounterIncreaser implements Runnable {

   // instance variables
   // ------------------

   private Counter c;   // Counter to be incremented
   private int n;       // # of times to increment that Counter

   // constructor
   // -----------

   /* Establishes this object as one that, each time its run() method is
   ** called applies increment() the specified number of times to the 
   ** specified Counter object.
   */
   public CounterIncreaser(Counter counter, int increaseBy) {
      this.c = counter;
      this.n = increaseBy;
   }

   // run() method
   // ------------

   public void run() {
      for (int i=0; i != n; i++) 
         { c.increment(); }
   }

}