If a.equals(b) returns true, b instanceof ClassOfA must always be true.
(Assume that ClassOfA is the name of the class of the variable a.)

Select 1 option

A. True
B. False

Expression (s instanceof java.util.Date) will return false if 's' was declared as a variable of class java.lang.String.

Select 1 option

A. True
B. False

Given the following class definitions, the expression

(obj instanceof A) && ! (obj instanceof C) && ! (obj instanceof D)

correctly identifies whether the object referred to by obj was created by instantiating class B rather than classes A, C and D?

class A {}
class B extends A {}
class C extends B {}
class D extends C {}

Select 1 option

A. True
B. False

Given the following class definitions and declaration:
  class A {}
  class B extends A {}
  class C extends B {}
  class D extends C {}
  D d = new D();
the expression (d instanceof A) will return true.

Select 1 option

A. True
B. False

The following code snippet will print true.

String str1 = "one";
String str2 = "two";
System.out.println( str1.equals(str1=str2) );

Select 1 option

A. True
B. False