AP Computer Science Final Exam UPDATED ACTUAL Questions and CORRECT Answers

AP Computer Science Final Exam
UPDATED ACTUAL Questions and
CORRECT Answers
Inheritance is the process of sharing methods and instance variables between a base class

and its subclasses (T/F). - CORRECT ANSWER - True


The name of the text file with Java source code must match the name of the program with a

.class extension (T/F). - CORRECT ANSWER - False


Both for loops and while loops can be used as count-controlled loops (T/F). - CORRECT
ANSWER - True


It is illegal to declare several variables in a single declaration, i.e. int a, b, c; - CORRECT
ANSWER - False



m++, m=m+1, and m+=1 are all equivalent expressions (T/F). - CORRECT ANSWER -
True


The assignment operator ( = ) and equal to operator ( == ) can be used interchangeably (T/F). -
CORRECT ANSWER - False



A while loop will always execute at least once (T/F). - CORRECT ANSWER - False


The counter in a for loop is updated at the beginning of the loop (T/F). - CORRECT
ANSWER - False


It is illegal to declare the loop control variable inside the for loop header (T/F). - CORRECT
ANSWER - False

, The for statement combines counter initialization, condition test and counter update into a single
expression (T/F). - CORRECT ANSWER - True


It is usually safer to use the == or != operators in loops, rather than the other logical operators
(T/F). - CORRECT ANSWER - False


The identity of an object is simply the variable that references the object (T/F). - CORRECT
ANSWER - False


A class's implementation details can be changed radically without affecting any of its clients
provided its interface remains the same (T/F). - CORRECT ANSWER - True


The keyword public indicates that the class is accessible to all potential clients (T/F). -
CORRECT ANSWER - True


Constructors do not have return types, but all other methods do (T/F). - CORRECT
ANSWER - True



A class can include only one constructor (T/F). - CORRECT ANSWER - False



A method can only have one return statement (T/F). - CORRECT ANSWER - False



The OR operand evaluates to false if one operand is false (T/F). - CORRECT ANSWER -
False


Nested if statements offer an alternative to deal with a programs logical complexity (T/F). -
CORRECT ANSWER - True