Java arrays initializing after declare

Question

I saw someone initialize and array like this in java

int[] s;

s = new int[]{ and put the list here..}

versus

int[] s = { the list here}

Are these both acceptable way of doing it?

Narendra Yadala · Accepted Answer · 2011-10-04 06:02:28Z

8

Yes, both are equally valid ways of creating a java integer array. The second version is just a shortcut syntax of the first version.

More on that here : http://download.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html

answered Oct 4, 2011 at 6:02

Narendra Yadala

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Mathias Schwarz · Accepted Answer · 2011-10-04 06:03:16Z

8

Yes, the latter is a shorthand for the former in a specific case: The latter can only be used directly in an initializer of a variable (where the type is given directly on the left-hand side), whereas the former can be used as an expression in general.

answered Oct 4, 2011 at 6:03

Mathias Schwarz

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1 Comment

informatik01 Over a year ago

+1 for mentioning the limitation of using the shortcut syntax.

Jarek Przygódzki · Accepted Answer · 2011-10-04 06:27:38Z

0

Yes, the actual bytecode generated in both cases is exactly the same.

answered Oct 4, 2011 at 6:27

Jarek Przygódzki

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