Have an array that holds 10 doubles (called doubles here).
At some point it need to be reset so all values equals zero.

If I just do doubles = null I get an null pointer exception.

I can do a for loop

for (int n = 0; n<10; n++)
doubles[n]=0;

But istnt there an easier and faster way ?

thanks

easier and faster? this is already the fastest and easier way...

If you had a list of 10 bajillion elements I would worry about the program being fast or not.

A simple for loop is just fine for 10 elements.

can't you just do

the default value for a double in an array would be 0.0 anyway

This post was edited by Ectasy on Aug 9 2012 02:44pm

ty both

Isnt that a bad practice as it "hides a field". ?
Doubles is an Instance variable declared in the head of the class.

This post was edited by tigeranden on Aug 9 2012 02:49pm

what do you mean by hides a field?
at any rate, if you don't want to use what i posted for whatever reason - just use what you had originally. it's not going to really matter either way unless you plan on doubles having an extremely large length

Netbeans gives the warning "hides a field" if I overwrite an instance variable in a method body.

Just trying to understand something. I value your input.

Hiding fields usually relates to inheritance, but making a whole new list is overkill when a simple for loop can do the job.

this probably has nothing to do with inheritance.

i'm guessing tiger's code is



in which case he's declaring the variable twice. remove one of the declarations

This post was edited by carteblanche on Aug 9 2012 05:44pm