Found a bug, need others to confirm.

**SergeLo** · 04-03-2012, 04:53 AM

Before Trues: 3084
After Trues: 3071
Before/After Difference: 13
Drops Hit: 13
Before Trues: 3084
After Trues: 3059
Before/After Difference: 25
Drops Hit: 25
Before Trues: 3072
After Trues: 3059
Before/After Difference: 13
Drops Hit: 13
Before Trues: 3072
After Trues: 3047
Before/After Difference: 25
Drops Hit: 25
Before Trues: 3060
After Trues: 3047
Before/After Difference: 13
Drops Hit: 13
Before Trues: 3060
After Trues: 3035
Before/After Difference: 25
Drops Hit: 25
Before Trues: 3048
After Trues: 3035
Before/After Difference: 13
Drops Hit: 13
Before Trues: 3048
After Trues: 3023
Before/After Difference: 25
Drops Hit: 25
Before Trues: 3036
After Trues: 3023
Before/After Difference: 13
Drops Hit: 13
Before Trues: 3036
After Trues: 3011
Before/After Difference: 25
Drops Hit: 25
Before Trues: 3024
After Trues: 3011
Before/After Difference: 13
Drops Hit: 13

omg, yellowledbet you are my hero! :)))
all i was trying to do is to move all sub arrays down a level in the main array, dropping the last one and keeping the first one untouched.

so, hold on. what exactly was going on with what i had before??
can someone explain?

**yellowledbet** · 04-03-2012, 05:09 AM

glad it worked. I am sure someone can explain this better, but I will give it a shot. Arrays are passed by reference (EDIT: The preceding statement is false, see DarrylBurke's link for clarification). So instead of changing the values in each array within your array you were changing the reference to the array. If you think about the cumulative effect of this, you are making a bunch of array variables point to the same array.

**SergeLo** · 04-03-2012, 06:16 AM

ahhhh! gotcha!
so as i was moving them down over an over, eventually the whole array held references to the first element in the array. so when one thing changed so did the ones above... Which is what led me to think that one assignment changed more than one location when each one was really the same location.
Thank You :)

**DarrylBurke** · 04-03-2012, 06:52 AM

Originally Posted by yellowledbet

Arrays are passed by reference.

No they are not. Array and other object references are passed by value, which isn't the same thing.

Recommended reading, in the order listed:

JavaRanch Campfire - Cup Size: a Story About Variables
JavaRanch Campfire - Pass By Value, Please

db

**SergeLo** · 04-03-2012, 08:26 AM

haha, i enjoyed that.
Daryl, what yellowledbet said by definition is wrong, but I'm sure what he meant by passing by reference is passing the value of the reference.

now... my rain array then means that its a remote in control of many other remotes... O.o

Anyways, thanks for ur help aswell Daryl

**yellowledbet** · 04-03-2012, 01:10 PM

Originally Posted by DarrylBurke

No they are not. Array and other object references are passed by value, which isn't the same thing.

Recommended reading, in the order listed:

JavaRanch Campfire - Cup Size: a Story About Variables
JavaRanch Campfire - Pass By Value, Please

db

Thank you for the correction and the links. That phrasing has always confused me, the reading clears it up.