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Java Java Data Structures Getting There Object Inheritance

Bradley Stone
Bradley Stone
933 Points
Posted by Bradley Stone
Bradley Stone
933 Points

toString() confusion

I'm a little confused as to why the program outputs the revised format after adding in

public String toString() { return "Treet: \"" + mDescription + "\" - @" + mAuthor; }

Could someone please explain step by step as to why the output is changed after adding in the toString() method? I know I'm missing something critical about inheritance here.

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

subclasses can create methods with signatures that match methods on classes from which they inherit. When code tries to call the method, it finds the subclass method.

1 Answer

Arthur Kharzamanov
Arthur Kharzamanov
5,414 Points
Arthur Kharzamanov
Arthur Kharzamanov
5,414 Points

Yeah, but it wasn't explained that apparently the printf() in the main() calls the toString() and that is how ("%s", treet) gets substituted with the overridden toString() method from the Treet class.