In this code … … I am just changing the order of parameters, but it is still considered as method overloading, i.e. static binding at compile time. My questions are: Why order is considered to be part of a method’s signature in Java? What are the advantages? From my POV I do not see the exact advantage in doing so.
Tag: overloading
Java create method in Interface and change the parameter type
How do I create an interface that when Overridden can have different types? Sometimes I would like the method to accept an item of type ‘HtmlPage’ and other times I would like it to take the type ‘Document’. Later these could change to even more types. Example: I am thinking something like this should be achievable. I have tried looking
Varargs in method overloading in Java
The following code doesn’t compile. A compile-time error is issued. reference to test is ambiguous, both method test(int…) in varargspkg.Main and method test(float…) in varargspkg.Main match It seems to be obvious because the parameter values in the method call test(1, 2); can be promoted to int as well as float If anyone or both of the parameters are suffixed by
Java erasure with generic overloading (not overriding)
I have FinanceRequests and CommisionTransactions in my domain. If I have a list of FinanceRequests each FinanceRequest could contain multiple CommisionTransactions that need to be clawed back. Dont worry how exactly that is done. The class below (very bottom) makes me feel all fuzzy and warm since its succint and reuses existing code nicely. One problem Type erasure. They both
How to do method overloading for null argument?
I have added three methods with parameters: When I am calling doSomething(null) , then compiler throws error as ambiguous methods. So is the issue because Integer and char[] methods or Integer and Object methods? Answer Java will always try to use the most specific applicable version of a method that’s available (see JLS ยง15.12.2). Object, char[] and Integer can all
Overload with different return type in Java?
Why is it not possible to overload a function just by changing the return type? Will that change in a future version of Java? By the way, just for reference, is this possible in C++? Answer You can’t do it in Java, and you can’t do it in C++. The rationale is that the return value alone is not sufficient