Check if an object is an instance of a class (but not an instance of its subclass)

Question

For this example:

public class Foo{}  public class Bar extends Foo{}  ....  void myMethod(Foo qux){    if (checkInstance(qux,Foo.class)){      ....    } } 

How can I check if qux is an instance of Foo (but not an instance of its subclass of foo)? That is:

• checkInstance(qux,Foo.class)=true
• checkInstance(qux,Bar.class)=false

Is there some kind of statement like instanceof for this check? or I should use qux.getClass().equals(Foo.class)

Answer 1

If you have to do this, the only way would be the getClass().equals(Foo.class) option you've suggested.

However, the goal of OO design is to allow you to treat any Foo in the same fashion. Whether or not the instance is a subclass should be irrelevant in a normal program.