Index table as String

[New ID]

Hello,
Is it possible to declare an array whose indexes are strings?
example:

tab [ "name"] = 0.45, tab [ "first_name"] = 0.66, ..., array [address] = 0.7

Is it possible to have a couple (String1, string2) as an index?
example:

tab [(name, surname)]: = 0.9, ...

Except that you propose as a solution to replace the index String? Thank you

[Modifier]

Hello,
In Java an array is necessarily numbers as clues. To do what you want you can use a hashmap (this is a data structure that can associate a key (index) to a value). You use it like this

HashMap map = <String,Float> new HashMap <String,Float> ();
map.could("name",0.45);
map.could("firstname",0.66);

[Katty]

Hello,
No tables can be String indices but is not very serious because you can use Maps to do the same thing. A small example with String key and value Double.

import java.util.Map;
import java.util.HashMap;
 
...
 
Map<String, Double> map = new HashMap <String, Double>(); / / declaration of the Map
map.could("name", 0. 45); / / add the value 0.45 with the key "name"
int value = map.get("name"); / / get value

[New ID]

Actually I manipulate a matrix whose column indices are d = couples strings and integers:

(34175, "string1") (34175, "string2") ... (34175, "MOTP)
0............ 0.56............ 0.21..................... 0.33
1
2
.
.
.
n. ........... 0.99 ............ 0.11 ..................... 0.44

How to report and handle all that? Thank you

[Modifier]

Hello,
I think you can try out this.

1. you define your index couple string / integer in a class immutable
2. you override the equals and hashcode for this class
3. then then use instances of this class as HashTable key (for ex.).

[New ID]

Hello,
For the structure is ok. it is just a detail, I want to make a

Map <Torque, int> Map1 = new HashMap <Couple int>();
not
Map <Couple Double> Map1 = new HashMap <Couple Double>();

I want to use the int as an index of the table. Because it does not Double as an ind