Using instanceof with a class Object [duplicate]

问题

This question already has answers here:

Is there something like instanceOf(Class<?> c) in Java? (7 answers)

Closed 4 years ago.

What's the correct syntax to make this work?

public boolean isTypeOf(Class type) {
     return this instanceof type;
}

I intend to call it with:

foo.isTypeOf(MyClass.class);

The method will be overriden, otherwise I would just use instanceof inplace.

回答1:

Use Class.isInstance(obj):

public boolean isTypeOf(Class type) {
     return type.isInstance(this);
}

This method determines if the given parameter is an instance of the class. This method will also work if the object is a sub-class of the class.

Quoting from the Javadoc:

This method is the dynamic equivalent of the Java language instanceof operator.

来源：https://stackoverflow.com/questions/32696912/using-instanceof-with-a-class-object