how do you overload an operator?

[Legionaire]

n00b question:

I got 1 class. And two instances of it.

There're values in those objects that I want to add together with the following format:

object1 + object2 = certain member elements added together;

it's the same as overloading with the friend operator in C++.

 

[palbano]

Java does not support operator overloading. While it is a great language it does not compare to C++. Syntax is similar but not much beyond that.

-pete

 

[Legionaire]

doh

alright thanks.

 

[hologram]

"Jave does not support overator overloading" is correct with one exception : The binary + operator is the only example of operator overloading in java.

"primitive numeric type" + "primitive numeric type" = addition
"string" + "any data type" = string concatenation
"any data type" + "string" = string concatenation
(In the last 2 cases an implicit string conversion will take place (via the toString() method

Any other combination gives a compiler error.

 

[palbano]

hologram, nice observation. However the question was about writing operator functions in your own classes which C++ supports.

-pete

 

[jobizfa]

Interestin!! This is not possible in java except if you use the + operator.To do what you want you need to store the values in variables and then operate on them from 2 different objects.