노재경_Homework2

///노재경

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.List;

public class Main {
    public static class FileUtils{
        public String getLoadText(String filePath){
            StringBuilder sb = new StringBuilder();
            try{
                Path path = Paths.get(filePath);
                List<String> lines = Files.readAllLines(path);
                for (int i =0; i<lines.size(); i++){
                    if(i> 0 ){
                        sb.append("\n");
    
                    }
                    sb.append(lines.get(i));
                }
            } catch(IOException e){
                e.printStackTrace();
            }
            return sb.toString();
        }
    }
    public static void main(String[] args){
     FileUtils fileutil = new FileUtils();
     String filePath = "G:\\내 드라이브\\제로베이스스쿨_백엔드스쿨\\part-01.-java-기초---마종현-강사님\\part-01.-java-기초---마종현-강사님\\Part 01. Java 기초 _소스코드\\Homework\\Homework2\\src\\President.txt";
     String text = fileutil.getLoadText(filePath);
     HashMap<Character, Integer> counts = new HashMap<Character, Integer>( );
     
     for(char c = 'A'; c <= 'Z'; c++) {
        counts.put(c, 0);
    }
     for(int i = 0; i <text.length(); i++){
        Character c = Character.toUpperCase(text.charAt(i));
        if(counts.containsKey((c))){
            counts.put(c, counts.get(c) + 1);
        }
     }
     for(char c = 'A'; c <= 'Z'; c++){
        int number = counts.get(c);
        float percent = (float) counts.get(c) / text.length() * 100; 
        String message = "%c= %d개, %.2f%%".formatted(c, number, percent);
        System.out.println(message);
     }

    }
}