[PDF] abstract class return subclass c++

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  • Can an abstract class have a return type?

    Also, an abstract class can contain non-abstract methods, which will be inherited by the children. An abstract method has no body. (It has no statements.) It declares an access modifier, return type, and method signature followed by a semicolon.

  • Can an abstract class be a subclass?

    An abstract class is a class that is declared abstract —it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed. When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class.

  • What is the return type of abstract class method?

    An abstract method can have either a void or non-void return type: public absract int getValue(); public absract void doSomething(); Abstract only determines that the current method/class will be defined by some future subclass.
  • Abstract classes in C++ need at least one pure virtual function in a class. The classes that inherit the abstract class must define the pure virtual function; otherwise, the subclass will become an abstract class.
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