Convert php to java/android arrays

Question

$tagArray = array(
 "apples" => 12,
 "oranges" => 38,
 "pears" => 10,
 "mangos" => 24,
 "grapes" => 18,
 "bananas" => 56,
 "watermelons" => 80,
 "lemons" => 12,
 "limes" => 12,
 "pineapples" => 15,
 "strawberries" => 20,
 "coconuts" => 43,
 "cherries" => 20,
 "raspberries" => 8,
 "peaches" => 25
 );

How I can do this in Java, and how to calling for the first and second params?

Answer 1

Java has no built in support for associative arrays. The corresponding datastructure in java is a Map. In this case you could for instance make use of a HashMap.

Here's one way.

Map<String, Integer> tagArray = new HashMap<String, Integer>() {{
 put("apples", 12);
 put("oranges", 38);
 put("pears", 10);
 put("mangos", 24);
 put("grapes", 18);
 put("bananas", 56);
 put("watermelons", 80);
 put("lemons", 12);
 put("limes", 12);
 put("pineapples", 15);
 put("strawberries", 20);
 put("coconuts", 43);
 put("cherries", 20);
 put("raspberries", 8);
 put("peaches", 25);
}};

To get the value for, say, "lemons" you do

int value = tagArray.get("lemons");

As @Peter Lawrey points out in the comments: If the order in the array is important to you, you could use a LinkedHashMap instead of a HashMap.

• Peter Lawrey: Too fast for me. ;) I would use a LinkedHashMap to retain order as you would in an array.
• Spiny Norman: Wow, java has this kind of initialization now? I'm learning! Also, (@lacas) here's some info about it: c2.com/cgi/wiki?DoubleBraceInitialization
• aioobe: Ah, right, arrays are ordered as opposed to maps... I'll update my answer.
• Stefan Teitge: It's just an anonymous class. No magic. But a clever trick anyway ;-)