divingcompetition.java

Java经典例程 从外国一大学计算机教授出版物下载的代码 经典

import java.io.*;
import javagently.*;

class DivingCompetition {

  /* The Diving program     by J M Bishop Dec 1996
   * ------------------     Java 1.1 October 1997
   *                        updated May 2000
   * Uses the Judge class to record the
   * correct scores for dives.
   * Illustrates calling class methods,
   * and typed methods and using arrays
   * in a separate class. */

   Display d = new Display ("Dving Competition");
   int noOfDives = 3;
   int noOfJudges = 8;

   DivingCompetition () throws IOException {

     headings ();

     double result, total = 0;
     // There is one Dives object which records 8 scored
     // and is reused for each dive

     Dive dive = new Dive (noOfJudges);
     int score;

     for (int i=0; i < noOfDives; i++) {
       d.println("Dive no: "+(i+1));
       d.println("Enter the scores for the judges");
       d.ready("Press ready to continue");
       for (int j = 0; j < noOfJudges; j++) {
         score = d.getInt("Judge "+(j+1));
         dive.setScore(j, score);
       }
       dive.assessScores();
       result = (double) (dive.sum
              - dive.minScore - dive.maxScore)
              / (double) (noOfJudges - 2);
       total += result;
       d.println("Scores " + dive.minScore + " from judge "
           + dive.minJudge + " and " + dive.maxScore +
           " from judge "
           + dive.maxJudge + " excluded.");
       d.println("Result is: " + Text.writeDouble(result,5,1));
     }
     System.out.println("Diving average is : "+
          Text.writeDouble(total/noOfDives,5,3));
   }

   void headings () {
     d.println ("Diving Score Calculator\n" +
                "=======================\n");

     d.println("For each of " + noOfDives +
       " dives give scores for "+noOfJudges+" judges.");
     for (int i = 1; i<=noOfJudges; i++)
       d.prompt ("Judge "+i,0);
   }

   public static void main (String [] args) throws IOException {
     new DivingCompetition ();
   }

}