实训1

Posted 2021-01-26 snjsnjsnj

码云地址：https://gitee.com/snjsnjsnj

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 snj=new GoldPoint();
snj.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);
}
}

}