在同学的帮组下用java写的黄金点游戏，写的不是很好，希望各位多多指点。本来想使用swing来做几个按钮的，但是对这个确实不是很懂，还是放弃了，采用了控制台输入的方式。主要是
使用hashmap来存储参加游戏的name和每次输入的数据。
代码如下：
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 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" ); } System.out.println( "游戏结束" ); } //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); } } }转载于:https://www.cnblogs.com/7inkoo/p/8124834.html
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