Various Topics on Java

..g .... ....

Hi,

I've ***umed that byte[] does equals with the content too, it's otherwise.
e.g.

byte[] testA = new byte[4];
testA[0] = 0;
testA[1] = (byte)0xac;
testA[2] = (byte)0xab;
testA[3] = (byte)0xde;

byte[] testB = new byte[4];
testB[0] = 0;
testB[1] = (byte)0xac;
testB[2] = (byte)0xab;
testB[3] = (byte)0xde;

System.out.println( testB.equals( testA ) );

prints "false"

How do you compare byte[]?
memcpy() .. kinda equvilant? ...

Hopefully not writing my own.

Thanks.

..v.. ..ls..

"Ong Hong Peow" <iou@iwow.com.sg> wrote in message
news:chgmvj$sfi$1@mawar.singnet.com.sg...
> Hi,
>
> I've ***umed that byte[] does equals with the content too, it's otherwise.
> e.g.
>
> byte[] testA = new byte[4];
> testA[0] = 0;
> testA[1] = (byte)0xac;
> testA[2] = (byte)0xab;
> testA[3] = (byte)0xde;
>
> byte[] testB = new byte[4];
> testB[0] = 0;
> testB[1] = (byte)0xac;
> testB[2] = (byte)0xab;
> testB[3] = (byte)0xde;
>
> System.out.println( testB.equals( testA ) );
>
> prints "false"
>
> How do you compare byte[]?
> memcpy() .. kinda equvilant? ...
>
> Hopefully not writing my own.

Use java.util.Arrays.equals(). The java.util.Arrays cl*** has all sorts of
methods that are useful when working with arrays.

--
David Hilsee