Computer scienceProgramming languagesJavaCode organizationObject-oriented programmingClass hierarchiesBuilding class hierarchies

Runtime type checking

Three classes and two objects

Report a typo

Here are three classes:

class A { }

class B extends A { }

class C extends B { }

and two objects:

A ac = new C();
A ab = new B();

Select all incorrect statements.

Select one or more options from the list

C.class.isInstance(ab) returns true

B.class.isInstance(ac) returns false

C.class.isInstance(ac) returns true

B.class.isInstance(ab) returns true

A.class.isInstance(ac) returns true

A.class.isInstance(ab) returns true

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