[Advanced-java] Performances

[Andrew Bacon]

The main benefit of the latter construct is if your variable is NULL 
then the condition is false w/out throwing a null pointer exception.

Performance wise, they are the same.

ARB

Marco Ferretti wrote:

>I there guys, I wonder if someone can point me somewhere. I have always
>coded boolean evaluation on strings like :
>
>String foo = "123";
>
>if(foo.equals("456") ){
>
>    ...
>
>}
>
>probably because I code as I think (if the variable equals something ....).
>
>I took a look at sun's code for jdk and always saw the above as 
>
>String foo = "123";
>
>if("ss".equals(foo) ){
>
>    ...
>
>}
>
>
>
>So : is there some reason (eg. performance) why I should change the way I
>always coded such things ?
>
>
>
>TIA
>
>    Marco
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