how to assign a different key to unknown amount of values in array java?

Question

how to assign a different key to unknown amount of values in array java?

to be more clear, lets say we have unknown amount of players (int players = random number).
and we also already have the same amount of names as the players (so we can assign player1 = names[0]).
how can i do that the key (String key) will change for each name assigning?

if this method would work i would do it like that:

for (int j = 0; j < players; j++){
String Player[j] =names[j];
}

how can i make it work?

Answer 1

To keep it easier I used a name array:

https://code.sololearn.com/c3lthpCMH24b/?ref=app

Answer 2

Hello yahel

Why so complicated?

You get an integer n (input or random) for the amount of players.

String[] player = new String[n];

Now you can add the names to each player in a for loop.

Or if you really don't know the number of players, you can use an ArrayList.

List<String> player = new ArrayList<>();

In both cases player1 is at index 0. playerN at n - 1.

Answer 3

yahel
From where do you get the names? User input or do you have a name array?

Answer 4

For it can be used the ArrayList instead of an Array.

https://www.sololearn.com/learn/Java/2179/

Answer 5

yahel the code designed by Denise Roßberg shows you great both possibilitys.
After completing the Java Tutorial you will be able to better handle the challenges.
Enjoy coding.

Answer 6

1. You cannot say String Player[j] cause Player is not an initiated array and if it would be you cant declare it as a String again.
2. Do you want a HashMap with value and key?
3. Why would you have a changing String as a key if you dont know what key would be usefull? Is it maybe a better idea to just have an array of Strings for the players?

Answer 7

Jnn I have unknown amount of players. And I have the same amount of names as the amount of players.
My goal is to assign each player to a name. HashMap won't work as I need it to work.

Answer 8

Ja Play how would the code look?

Answer 9

Can you show me how would it look?