test2.java

package sha1;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

public class Test2 {

    public static void main(String[] args) throws IOException {

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        System.out.print("input:");
        String input = reader.readLine();
        Map<String, Integer> definitionWorkLevel = new HashMap<String, Integer>() {{
            put("Easy", 1);
            put("Medium", 2);
            put("Hard", 3);
        }};

        String[] mapped = input
                .replaceAll(" ", "")
                .replaceAll("“","\"")
                .replaceAll("”","\"")
                .replaceAll("\\[\\{\"", "")
                .replaceAll("\":", ":")
                .replaceAll("},\\{\"", "\n")
                .replaceAll("}]", "\n")
                .split("\n");

        int sum = 0;

        for (String s : mapped) {
            String[] work = s.split(":");
            sum = sum + definitionWorkLevel.get(work[0]) * Integer.parseInt(work[1]);
        }
        System.out.print("จำนวน " + Math.round(sum / 8) + " คน");

    }

    public static class WorkLevel {
        private String level;
        private Integer hours;

        WorkLevel(String level, Integer hours) {
            this.level = level;
            this.hours = hours;
        }

        public String getLevel() {
            return this.level;
        }

        public Integer getHours() {
            return this.hours;
        }

    }

}