Java code equivalent to following php code

Question

What could be the java equivalent code for following php syntax:

   $newPerson = array(
        'firstname'  => 'First',
        'lastname'   => 'Last',
        'email'      => 'test@example.com',
    );

I think here firstname is index of array and First is value at that index.How can I define such an array in java?

http://stackoverflow.com/questions/5122913/java-associative-array — Jeff, Oct 05 '11 at 07:03

Jon Skeet · Answer 1 · 2011-10-05T07:08:47.137

2

I suspect the closest you'll come is a map:

Map<String, String> map = new HashMap<String, String>();
map.put("firstname", "First");
map.put("lastname", "Last");
map.put("email", "test@example.com");

EDIT: If you want to preserve insertion order (i.e. you need to know that firstname was added before lastname) then you might want to use LinkedHashMap instead.

edited Oct 05 '11 at 07:08

answered Oct 05 '11 at 07:02

Jon Skeet

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May be a LinkedHashMap is even more closer? – Narendra Yadala Oct 05 '11 at 07:07
@Narendra: Possibly. It depends on whether the order is preserved in a PHP - I don't know. Will edit. – Jon Skeet Oct 05 '11 at 07:08
Yes this http://php.net/manual/en/language.types.array.php says array is a ordered map. – Narendra Yadala Oct 05 '11 at 07:08
@Narendra: Right, thanks. Have left it as "If you want" as the OP may not be interested in that. – Jon Skeet Oct 05 '11 at 07:51

score 2 · Answer 2 · answered Oct 05 '11 at 07:02

2

newPerson would be a java hash map (java.util.HashMap<String,String>) and you would explicitly insert by using put

answered Oct 05 '11 at 07:02

Foo Bah

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score 2 · Answer 3 · edited Oct 05 '11 at 07:07

2

Map<String, String> newPerson = new HashMap<String, String>();
newPerson.put("firstname", "First");
newPerson.put("lastname", "Last");
newPerson.put("email", "test@example.com");

edited Oct 05 '11 at 07:07

Foo Bah

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answered Oct 05 '11 at 07:03

Petar Ivanov

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score 1 · Accepted Answer · answered Oct 05 '11 at 07:07

1

Map<String, String> newPerson = new HashMap<String, String>()
{{
    put("firstname", "First");
    put("lastname", "Last");
    put("email", "test@example.com");
}};

answered Oct 05 '11 at 07:07

Eng.Fouad

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score 0 · Answer 5 · answered Oct 05 '11 at 07:11

You should also use SortedMap to store value with user-define index name in sorted order
here is sample code to do this
define a SortedMap with:

SortedMap<String, String>newPerson = new TreeMap<String, String>();

to put value in shorted-map used:
newPerson.put("firstname", "First");

and to get this value :
newPerson.get(""firstname");

Java code equivalent to following php code

5 Answers5