Instance of any class as input of a method in java

Question

public class Class{
   public void method(class a, class b){
      //some stuff
   }
}

What i want is that a and b can be instances of any class. Is this legal in java? Is there any way to do this?

Thanks.

Answer 1

Use Object. Any class in Java is a (direct or indirect) sub-class of Object.

public class MyClass {
   public void method(Object a, Object b){
      //some stuff
   }
}

Oh, and don't use the class name "Class". It's already used in Java.

Answer 2

Your given code is not legal because class is a keyword in java see JLS 3.9. Keywords

USe can use Object class from JLS 4.3.2. The Class Object

The class Object is a superclass (§8.1.4) of all other classes.

Use following:

public class Class{
   public void method(Object a, Object b){
      //some stuff
   }
}