lecture10 | Diamond Problem | Virtual Methods | Diamond problem in inheritance
The diamond problem occurs in multiple inheritance when a class inherits from two classes that have a common ancestor. This leads to ambiguity about which method or property to inherit.
Visual Representation:
A
/ \
B C
\ /
D
How Java Solves It
Java does not support multiple inheritance with classes, only single inheritance.
But Java does allow multiple inheritance with interfaces because interfaces do not contain state, only abstract method declarations or default methods (with a clear rule to resolve conflicts).
What is a Virtual Method?
A virtual method is a method that can be overridden in a subclass and is resolved at runtime using dynamic method dispatch.
In Java, all non-static, non-private, non-final methods are virtual by default.
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