Obj In array as int

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mnml - 05 Dec 2007 08:04 GMT

Hi,
I am trying to make a if loop using a Int value contained in an Array
'array2D[a][a]'

if(array2D[a][a]==0)
dosomething();

I would like to know how I can define the content as an Integer in
that case;
The error message:

./myDisplay.java:52: incomparable types: java.lang.Object and int
if(array2D[a][a]==0)
^

Thanks

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GArlington - 05 Dec 2007 12:05 GMT

> Hi,
> I am trying to make a if loop using a Int value contained in an Array
[quoted text clipped - 12 lines]
>
> Thanks

Are you trying to make a 2D array of Integer objects
Integer [][] array2D = new Integer[a][b];
or 2D array of int (primitive data type)
int[][] array2D = new int[a][b];

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Lew - 05 Dec 2007 14:59 GMT

mnml <rdelsa...@gmail.com> wrote:

>> Hi,
>> I am trying to make a if loop using a Int value contained in an Array
[quoted text clipped - 10 lines]
>> if(array2D[a][a]==0)
>> ^

> Are you trying to make a 2D array of Integer objects
> Integer [][] array2D = new Integer[a][b];
> or 2D array of int (primitive data type)
> int[][] array2D = new int[a][b];

To the OP: Here's where an SSCCE
<http://www.physci.org/codes/sscce.html>
can be so very useful.

Notice that GArlington's question can only be answered by reference to the
code that you /didn't/ post.

An Integer or int array would've worked.

Another hint - the error message told you what was wrong. You were comparing
an Object to an int. What would have been comparable, if not Object to int?

Signature

Lew

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mnml - 05 Dec 2007 16:53 GMT

> > Hi,
> > I am trying to make a if loop using a Int value contained in an Array
[quoted text clipped - 17 lines]
> or 2D array of int (primitive data type)
> int[][] array2D = new int[a][b];

thanks you.

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GArlington - 05 Dec 2007 12:06 GMT

> Hi,
> I am trying to make a if loop using a Int value contained in an Array
[quoted text clipped - 12 lines]
>
> Thanks

If is NOT a loop...

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Roedy Green - 06 Dec 2007 13:00 GMT

>Hi,
>I am trying to make a if loop using a Int value contained in an Array
>'array2D[a][a]'
>
> if(array2D[a][a]==0)
> dosomething();

see http://mindprod.com/jgloss/array.html

To compare, without auto unboxing, see
http://mindprod.com/applet/converter.html

Signature

Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

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