How to define a constant creator method in Java

Question

How can I define a constant in my class that returns a object? What I'm looking for is something like BigInteger.ZERO

Declare a static variable of that object type in your class. — SacJn, Oct 21 '15 at 17:28
`public static final BigInteger ZERO = new BigInteger(new int[0], 0);` — Andy Thomas, Oct 21 '15 at 17:29
To be accurate the "constant" member of your class will not "return" anything. Methods return things. Do you want a method that return an immutable variable ? — Manos Nikolaidis, Oct 21 '15 at 17:32
Will this create a new instance of the object every time? otherwise, how can I make sure it is immutable? — b_pcakes, Oct 21 '15 at 17:40

score 0 · Answer 1 · answered Oct 21 '15 at 17:30

0

This is how BigInteger.ZERO is defined :

public static final BigInteger ZERO = new BigInteger(new int[0], 0);

answered Oct 21 '15 at 17:30

Manos Nikolaidis

score 0 · Answer 2 · answered Oct 21 '15 at 17:30

0

public class SomeClass {
    public static final type CONST_NAME = new SomeObject();

    ...
}

Then you can do SomeClass.CONST_NAME

answered Oct 21 '15 at 17:30

leeor

2 Answers2