User Logs

package javabasics;

import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeMap;

public class UserLogs {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String current = input.nextLine();
        Map<String,LinkedHashMap<String,Integer>> info = new TreeMap<>();
        while (!current.equals("end")){
            String[] userInfo = current.split(" ");
            String address = userInfo[0].substring(3);
            String user = userInfo[2].substring(5);
            if (info.containsKey(user)){
                LinkedHashMap<String,Integer> old = info.get(user);
                if (old.containsKey(address)){
                    int oldCount = old.get(address);
                    old.put(address, oldCount+1);
                    info.put(user, old);
                }
                else {
                    old.put(address, 1);
                    info.put(user, old);
                }
            }
            else {
                LinkedHashMap<String,Integer> newInfo = new LinkedHashMap<>();
                newInfo.put(address, 1);
                info.put(user, newInfo);
            }
            current = input.nextLine();
        }
        Set<String> keys = info.keySet();
        for(String key: keys){
            System.out.println(key+":");
            HashMap values = info.get(key);
            Set<String> keysVal = values.keySet();
            Collection valuesVal = values.values();
            int count = 0;
            for(String k: keysVal){
                System.out.print(k + " => " + values.get(k));
                count++;
                if (count == values.size()){
                    System.out.println(".");
                }
                else {
                    System.out.print(", ");
                }
            }
        }
    }
}