Associative Array | PPL | Sebesta | Elementary Data Types in Programming Language

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6. Associative Arrays

              An associative array is an unordered collection of data elements that are indexed by an equal number of values called keys.   (Key-Value Pairs)

              Associative arrays are supported directly by Perl, Python, Ruby, and Lua and by the standard class libraries of Java, C++, C#, and F#.

 

e.g.

 

1. Java

              In Java, Associative Arrays are implemented by Map interface and its classes HashMap, LinkedHashMap, TreeMap.                                                                                                  

 

2. Perl

              In Perl, associative arrays are called hashes.

 

%salaries = ("Gary" => 75000, "Perry" => 57000,

"Mary" => 55750, "Cedric" => 47850);

 

 

3. Python

              Python’s associative arrays, which are called dictionaries.

 

statecapital = {

  "Maharashtra": "Mumbai",

  "Karnataka": "Bangalore",

  "Telangana": "Hyderabad"

}

print(statecapital)

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