Object Oriented Programming - Exam 1 UPDATED QUESTIONS AND CORRECT ANSWERS

Object Oriented Programming - Exam 1
UPDATED QUESTIONS AND CORRECT
ANSWERS
The new operator:

(a) allocates memory

(b) is used to create an object of a class
(c) associates an object with a variable that names it.

(d) All of the above. - CORRECT ANSWER (c) associates an object with a variable
that names it.



A method that performs some action instead of returning a value is called a __________
method.

(a) null

(b) void

(c) public

(d) private - CORRECT ANSWER (b) void



The body of a method that returns a value must contain at least one _________ statement.
(a) void

(b) invocation

(c) throws

(d) return - CORRECT ANSWER (d) return



A variable whose meaning is confined to an object of a class is called:

(a) instance variable

(b) local variable

(c) global variable

(d) none of the above - CORRECT ANSWER (a) instance variable

, In Java, a block is delimited by:

(a) ( )

(b) /* */
(c) " "

(d) { } - CORRECT ANSWER (d) { }



The parameter this refers to

(a) instance variables

(b) local variables

(c) global variables

(d) the calling object - CORRECT ANSWER (d) the calling object



When the parameters in a method have the same as instance variables you can differentiate
them by using the _____ parameter.

(a) String

(b) hidden

(c) default

(d) this - CORRECT ANSWER (d) this



A program whose only task is to test a method is called a:

(a) driver program

(b) stub

(c) bottom-up test

(d) recursive method - CORRECT ANSWER (a) driver program



A set method is:

(a) an accessor method
(b) a mutator method