An element with a smaller z-index value is displayed on top of an element with a larger value.

How would you check a data model for redundancy? Give an example to illustrate your answer.

What will be an ideal response?

Which of the following statements is false?

a. A reference to an object is required to invoke an object’s methods. b. A primitive-type variable does not refer to an object. c. Reference-type instance variables are initialized by default to the value void. d. A primitive-type variable cannot be used to invoke a method.