Static vs. Dynamic Dispatching

When there are multiple method implementations, which one do we decide to use?

C++ uses

• static dispatching when it calls non-virtual methods (uses the function from the static type)
• dynamic dispatching when it calls a Virtual Method (uses the dynamic type of the pointer, implemented using virtual pointer)

Note for Java

Java always uses dynamic dispatching. Except for final methods which use static dispatching.

Related

• Static and Dynamic Type of Pointer