countflips.java

java源程序 对初学者有很大的帮助 从简单到复杂

//********************************************************************
//  CountFlips.java       Author: Lewis/Loftus
//
//  Demonstrates the use of a programmer-defined class.
//********************************************************************

public class CountFlips
{
   //-----------------------------------------------------------------
   //  Flips a coin multiple times and counts the number of heads
   //  and tails that result.
   //-----------------------------------------------------------------
   public static void main (String[] args)
   {
      final int NUM_FLIPS = 1000;
      int heads = 0, tails = 0;

      Coin myCoin = new Coin();  // instantiate the Coin object

      for (int count=1; count <= NUM_FLIPS; count++)
      {
         myCoin.flip();

         if (myCoin.isHeads()) 
            heads++;
         else
            tails++;
      }

      System.out.println ("The number flips: " + NUM_FLIPS);
      System.out.println ("The number of heads: " + heads);
      System.out.println ("The number of tails: " + tails);
   }
}