Что не так?
package com.javarush.task.task10.task1019;
import java.io.*;
import java.util.HashMap;
import java.util.Map;
/*
Функциональности маловато!
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
HashMap<String, Integer> list = new HashMap<>();
while (true) {
String num = reader.readLine();
int id = Integer.parseInt(num);
String name = reader.readLine();
if (num.equals("")) {
break;
}
else {
list.put(name, id);
}
}
for (Map.Entry<String, Integer> pair : list.entrySet()) {
String Key = pair.getKey();
int Value = pair.getValue();
System.out.println(Value + " " + Key);
}
}
}