String not equal to...... :(

[GrumpyBum]

Hi all,

I am trying to pull data from an array and I am now doing so successfully thank you to some information from 'mwr1976' :)
How ever I have this strange issue doing my head in.....

If there is nothing recorded in the array location I am pulling from I want the app to not do anything with it,
The line I am using is

if (!Toy.toys[i][3].equals(null)) {

and I have tried

if (!Toy.toys[i][3].equals("null")) {

BUT, I get

Exception in thread "main" java.lang.NullPointerException

BTW, this is a String[][] array

This also terminates my program at this point / where ever I hit a "null"

Any ideas? Thanks

[jlczuk]

if (Toy.toys[i][3] != null)  {

[GrumpyBum]

if (Toy.toys[i][3] != null)  {

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The operator ! is undefined for the argument type(s) String

[GrumpyBum]

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The operator ! is undefined for the argument type(s) String

Nope, all good this has worked thank you.
I did not remove the ! from the front of the statement when changing to !=

[jlczuk]

You're welcome. the .equals will only work for another string or a string literal.

[GrumpyBum]

I was thinking in the line of strings for this as the array is a string array full of strings :)
However, I have learnt where the confusion was coming from so that I can work with a lot more of these in the future.

Thanks again and the extra information certainly helps.