1.代码来源:
博客园:http://www.cnblogs.com/liupeixuan/p/7586444.html
2. Platform:Eclipse
Language:Java
3.具体实现流程图:
4. Bug:出现了一个小问题,及参数定义不明确,修改了便能好运行了。
5. Function improvement:
代码主要实现了由用户控制有多少人参加游戏,进行多少轮,进行用户名字的录入,以及每轮比赛的比赛结果的公布。
6. Implementation:可实现
7.代码如下:
package demo2; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Scanner; public class GoldPoint { public static void main(String[] args){ GoldPoint gd=new GoldPoint(); gd.goldPoint(); } public void goldPoint(){ HashMap<String,Double> inputMap=new HashMap<String,Double>();//存入输入分数 HashMap<String,Double> scoreMap=new HashMap<String,Double>();//存入分数 String name=""; Double inputScore; int peopleNum;//参加的人数 int time;//进行轮数 Double sum=0.0; Double aver=0.0; Scanner scan=new Scanner(System.in); //参数对象是系统进来的流 System.out.println("输入参加的人数:"); peopleNum=scan.nextInt(); System.out.println("输入需要进行几轮:"); time=scan.nextInt(); for(int i=0;i<peopleNum;i++){ System.out.println("请输入第"+(i+1)+"个参加者的姓名:"); name=scan.next(); System.out.println("请输入第一轮的分数:"); inputScore=scan.nextDouble(); inputMap.put(name, inputScore); scoreMap.put(name,(double) 0);//初始化scoreMap sum+=inputScore; } aver=sum/peopleNum*0.618; System.out.println("aver="+aver); this.findWinner(inputMap, scoreMap, aver); this.show(scoreMap); System.out.println("第一轮结束"); for(int i=0;i<time-1;i++){ sum=0.0; System.out.println("请输入第"+(i+2)+"轮的分数:"); Iterator iter = inputMap.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry0 = (Map.Entry) iter.next(); String key = (String) entry0.getKey(); System.out.println(key+"输入第"+(i+2)+"轮分数:"); Double score =scan.nextDouble(); inputMap.put(key, score);//替换掉以前的分数 sum+=score; } aver=sum/peopleNum*0.618; System.out.println("aver="+aver); this.findWinner(inputMap, scoreMap, aver); this.show(scoreMap); System.out.println("第"+(i+2)+"轮结束"); } } //找出每次分数最接近黄金点的 和最远的 最接近的加一分 最远的减一分 其余加零分(可能有相同的) public void findWinner(HashMap<String,Double> inputMap,HashMap<String,Double> scoreMap,Double aver){ Double temp; Double temp0; List<String> latest=new ArrayList<String>(); List<String> farthest=new ArrayList<String>(); Iterator iter = inputMap.entrySet().iterator(); Map.Entry entry = (Map.Entry) iter.next(); Double input = (Double) entry.getValue(); String key0 = (String) entry.getKey(); latest.add(key0); farthest.add(key0); //iter.hasNext(); temp0=temp=Math.abs(aver-input); //遍历map while (iter.hasNext()) { entry = (Map.Entry) iter.next(); String key = (String) entry.getKey(); input = (Double) entry.getValue(); Double temp1=Math.abs(aver-input); if(temp>temp1){//寻找最近 temp=temp1; latest.clear(); latest.add(key); }else if(temp==temp1){ latest.add(key); } if(temp0<temp1){//寻找最远 temp0=temp1; farthest.clear(); farthest.add(key);} else if(temp0==temp1){ farthest.add(key); } } //实现加分 iter = scoreMap.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry0 = (Map.Entry) iter.next(); String key = (String) entry0.getKey(); Double score =(Double) entry0.getValue(); if(this.containList(key, latest)){ score=score+1; scoreMap.put(key, score); } if(this.containList(key, farthest)){ score=score-1; scoreMap.put(key, score); } } } public boolean containList(String str,List<String> list){ for(int i=0;i<list.size();i++){ if(str.equals(list.get(i))){ return true; } } return false; } public void show(HashMap<String,Double> scoreMap){ System.out.println("得分情况:"); Iterator iter = scoreMap.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry0 = (Map.Entry) iter.next(); String key = (String) entry0.getKey(); Double score =(Double) entry0.getValue(); System.out.println(key+":"+score); } } }
8. Github地址:https://github.com/judySong/judy2/blob/master/GoldPoint.java