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generics - duplicate method declaration

Asha Venkata
Greenhorn

Joined: Jun 17, 2008
Posts: 1
Hello,

Can someone please explain why the Java compiler considers the following to be duplicate definition of the method foo():

public void foo (List<String> x) {}
public void foo (List<Integer> x) {}

Thanks
Asha
Ernest Friedman-Hill
author and iconoclast
Marshal

Joined: Jul 08, 2003
Posts: 24183
    
  34

Hi,

Welcome to JavaRanch!

Java generics work by erasure, meaning that they're largely a compile-time abstraction. At runtime, all reference to the type parameter is removed -- which means these two methods are identical.


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It is sorta covered in the JavaRanch Style Guide.
 
subject: generics - duplicate method declaration
 
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