Method Overloading for null argument

Question

I have added three methods with parameters:

public static  void doSomething(Object obj) {
    System.out.println(\"Object called\");
}

public static  void d         


        

Answer 1

there is an ambiguity because of doSomething(char[] obj) and doSomething(Integer obj) .

char[] and Integer both are same superior for null thats why they are in ambiguous .