Укажите, буду премного благодарен!
package com.javarush.task.task19.task1919;
/*
Считаем зарплаты
*/
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Map;
import java.util.TreeMap;
public class Solution {
public static void main(String[] args) throws IOException {
Map<String, Double> map = new TreeMap<>();
BufferedReader reader = new BufferedReader( new FileReader(args[0]));
while (reader.ready()){
String[] str = reader.readLine().trim().split("\\s");
map.merge(str[0].trim(),Double.parseDouble(str[1]),(key, val) -> val + Double.parseDouble(str[1]));
}
reader.close();
map.forEach((key,val) -> System.out.println(key+" "+val));
}
}