Should they be sorted alphabetically or in ascending order of salaries??

Question about the task

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The first parameter of the main method is a file name.
Each line of the specified file has the following format:
name value
where [name] is a String and [value] is a double. [name] and [value] are separated by a space.

Find the sum of all the values for each name.
Display all the data, sorted by name in ascending order.
Close the streams.

Example input file:
Peterson 2 Smith 6 Baxter 1.35 Peterson 3.1

Example output:
Baxter 1.35 Peterson 5.1 Smith 6.0

Requirements:

The program must NOT read data from the console.
The program must read the file's contents (use FileReader).
The file input stream (FileReader) must be closed.
The program should write to the console each name, sorted in ascending order, and the sum of all its values.

package com.codegym.task.task19.task1919; /* Calculating salaries */ import java.util.*; import java.io.*; // T1919 public class Solution { public static void main(String[] args) throws Exception { // args = new String[] { "/uploads/teszt.txt", "blabla" }; // System.out.println(args[0] + ", " + args[1]); ArrayList<String> fileLines = new ArrayList<>(); BufferedReader bfr = new BufferedReader(new FileReader(args[0])); String s; while ((s = bfr.readLine()) != null) { if (s.isEmpty()) break; fileLines.add(s); } bfr.close(); HashMap<String, Double> hshm = new HashMap<>(); String key = null; Double d = null; for (int i=0; i<fileLines.size(); i++) { key = fileLines.get(i).substring(0, fileLines.get(i).indexOf(" ")); // System.out.print(key); d = Double.parseDouble(fileLines.get(i).substring(fileLines.get(i).indexOf(" ")+1)); // System.out.println(d); if (!hshm.containsKey(key)) { hshm.put(key, d); } else hshm.put(key, hshm.get(key)+d); } // System.out.println(hshm); HashMap<Double,String> hshmInverted = new HashMap<>(); for (Map.Entry<String, Double> pair : hshm.entrySet()) { hshmInverted.put(pair.getValue(), pair.getKey()); } // System.out.println(hshmInverted); ArrayList<Double> dbList = new ArrayList<>(hshmInverted.keySet()); Collections.sort(dbList); for(int i=0; i<dbList.size(); i++) { System.out.print(hshmInverted.get(dbList.get(i))+" "); System.out.println(dbList.get(i)); } } }

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Lisa

Level 41

10 October 2021, 15:18

useful

That's what they write: Display all the data, sorted by name in ascending order. I've implemented it that way and it validated. Bye bye dear colleague, yeah, yeah 😜🤪 Ahhh.. I didn't want to do it by I can not resist... what if the two persons have the same summed up values, young padawan? I must be crazy, ahhh, really crazy, crazy... why do I do that... 🤪😜