CODEWITHSUNDEEP
javaarrayskey-value
Ali
Ali

Reputation: 577

Store data as key value in array Java

In Javascript we can store values in array like

var arr=[];
arr["name"]="test";
arr["value"]="result";
console.log(arr["name"]);

above mentioned array is storing values like key value pair,my question is this we can achieve in java without using hashmap ? so that we can get value by key in java

Upvotes: 0

Views: 1569

Answers (2)

K139
K139

Reputation: 3669

It's not possible. Arrays are Integer Index based in Java.

HashMap is specifically designed for that purpose.

Upvotes: 0

Lawrence Aiello
Lawrence Aiello

Reputation: 4638

I mean you could achieve it that way, but it is much less efficient. Searching an array for a specific value will be of O(n) complexity while hashmaps only take O(1) in the best case scenario (with no chaining).

Upvotes: 2

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