How to declare empty arrays using objective C?

Question

I have my code in java as follows but I don't know how to convert it.

public  int[] originalPixels;
public  int[][] RGB1;
public  int[][] RGB2;

possible duplicate of How to initialize an empty mutable array in Objective C — Olter
– Olter, Commented Aug 7, 2014 at 7:07

Community · Accepted Answer · 2017-05-23 12:20:50Z

0

Depends on what exactly you want to achieve you can create a property of type NSArray (if it doesn't have to be mutable) or NSMutableArray if you want to modify that array. You could also you a C style of arrays but I think the object version is more convenient and Objective-C world.

This is very basic problem so I would recommend you to read some tutorial with basis of objective-C as there is quite a lot of details you should be aware to fits your demands :)

Some helpful links:

edited May 23, 2017 at 12:20

CommunityBot

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answered Aug 7, 2014 at 7:09

Julian

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Attila · Accepted Answer · 2014-08-07 07:12:28Z

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The c/c++ is more closer to hardware than java. The array is mean the postion of the memory. So you can use pointers. int* originalPixels; or int** RGB1; int** RGB2; After the declare you sholud allocate them.

answered Aug 7, 2014 at 7:12

Attila

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