0114_과제6

6.java

// 김명지

import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;

public class a6 {

    public static void main(String[] args) {
        // 입력받기
        Scanner sc = new Scanner(System.in);
        System.out.print("총 진행할 투표수를 입력해 주세요.");
        int totalVoteNum = sc.nextInt();
        System.out.print("가상 선거를 진행할 후보자 인원을 입력해 주세요.");
        int candidateNum = sc.nextInt();
        ArrayList<String> nameList = new ArrayList<>();
        for (int i = 1; i <= candidateNum; i++) {
            System.out.printf("%d번째 후보자이름을 입력해 주세요.", i);
            String name = sc.next();
            nameList.add(name); // index : i-1
        }
        System.out.println();
        ArrayList<Integer> voteArray = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            voteArray.add(0);
        }
        Random random = new Random();
        for (int i = 1; i <= totalVoteNum; i++) {
            int voteNum = random.nextInt(candidateNum); // 0~3
            int curNum = voteArray.get(voteNum);
            voteArray.set(voteNum, curNum + 1);
            double progressRate = (double) i / totalVoteNum * 100;
            System.out.printf("[투표진행률]: %.2f%%, %d명 투표 => %s \n", progressRate, i, nameList.get(voteNum).toString());
            for (int j = 1; j <= candidateNum; j++) {
                String candidateNameWithColon = String.format("%-10s", nameList.get(j - 1) + ":");
                int candidateVoteNum = voteArray.get(j - 1);
                double candidateVoteRate = (double)candidateVoteNum / totalVoteNum * 100;
                System.out.printf("[기호:%d] %-10s %.2f%% \t (투표수: %d)\n", j, candidateNameWithColon, candidateVoteRate, candidateVoteNum);
            }
            System.out.println();
        }
        // 당선인 선정
        int maxVoteNum = 0, maxCandidateIndex = 0;
        for (int i = 0; i < candidateNum; i++) {
            int curVoteNum = voteArray.get(i);
            if (curVoteNum > maxVoteNum) {
                maxVoteNum = curVoteNum;
                maxCandidateIndex = i;
            }
        }
        System.out.printf("[투표결과] 당선인 : %s", nameList.get(maxCandidateIndex));

    }
}