/*
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*/
/**
*
* @author Dell
*/
import java.util.*;
import java.io.*;
public class ArbazSolution {
public static void main(String[] args) throws IOException{
HashMap> hts = new HashMap>();
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
// adding elements to the list , depends upon how many records you have
// suppose you have 2 records i.e 2 rows * 2 coloumns
// like city , user
for(int i = 0 ; i < 5 ; i++){ //put the greater to i index equal to number of records you want to enter ;
// every new city name or if existing then we will update in the code below
System.out.println("\nEnter the city name :: \n");
String city = br.readLine();
String lst = "";
ArrayList names = new ArrayList<>();
//for(int j = 0 ; j < 2 ; j++){ // for records
lst = "";
System.out.println("\nEnter the names to insert in the city");
lst = br.readLine();
names.add(lst); // we will add the name in the list here
// }
// now after 2 names entered we will append the city , Arraylist of names to hashMap
// now to check if the key city exists in the table or not
if(hts.containsKey(city)){
hts.get(city).add(lst);
}
// if not existing then we add the new record to the hashmap
else{
hts.put(city, names);
}
}
//printing the values in the hashtable
System.out.println("CiTY :: Values");
for(Map.Entry m : hts.entrySet()){
System.out.print(m.getKey()+ " " +m.getValue() + "\n");
}
}
}