How can set functions change values when Java is pass-by-value?

Question

I've heard from many people that Java is a pass-by-value language. If so, how can a set function change a variable's value?

It uses the method argument to change a field in the object. There is no need to change the argument itself. — VGR, Jun 21 '17 at 14:37
Then isn't there any way to change a private variable inside a class? — Ahmet Emre Boyacı, Jun 21 '17 at 14:37
A private variable can be accessed and changed inside that Class. — Felix, Jun 21 '17 at 14:39
does java have a pass by reference? if so thats what you need, never used java so cant confirm if java includes this — WhatsThePoint, Jun 21 '17 at 14:50
@WhatsThePoint [no](https://stackoverflow.com/questions/40480/is-java-pass-by-reference-or-pass-by-value). — Andy Turner, Jun 21 '17 at 14:53
but,guys, the thing that confused me was that I thought a function couldn't change the actual value if the variable wasn't in its scope. But when I use a set function to change the value of an int and get it with a get function, i get the new value. how so? — Ahmet Emre Boyacı, Jun 21 '17 at 14:56

score -1 · Accepted Answer · answered Jun 21 '17 at 14:41

-1

In Java we use accessors to accomplish this.

and this is a good reference to understand pass-by-value and how to test for it.

answered Jun 21 '17 at 14:41

Demogorii

Thanks a lot for the fast reply, it really helped me understand! – Ahmet Emre Boyacı Jun 21 '17 at 14:44
@AhmetEmreBoyacı you can mark this as the answer if it helped. Thanks! – Demogorii Jun 21 '17 at 15:24

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