What is the best way to implement constants in Java?
constants, java
Solution
That is perfectly acceptable, probably even the standard.
(public/private) static final TYPE NAME = VALUE;
where `TYPE` is the type, `NAME` is the name in all caps with underscores for spaces, and `VALUE` is the constant value;
I highly recommend NOT putting your constants in their own classes or interfaces.
As a side note: Variables that are declared final and are mutable can still be changed; however, the variable can never point at a different object.
For example:
public static final Point ORIGIN = new Point(0,0);
public static void main(String[] args){
ORIGIN.x = 3;
}
That is legal and `ORIGIN` would then be a point at (3, 0).
Problem
I've seen examples like this: ``` public class MaxSeconds { public static final int MAX_SECONDS = 25; } ``` and supposed that I could have a Constants class to wrap constants in, declaring them static final. I know practically no Java at all and am wondering if this is the best way to create constants.