CSIS 212 FINAL EXAM – QUESTIONS
• Question 1
3 out of 3 points
Which statement below could be used to simulate the outputs of tossing a quarter to get heads or tails? Suppose randomNumbers is a SecureRandom obje
...
CSIS 212 FINAL EXAM – QUESTIONS
• Question 1
3 out of 3 points
Which statement below could be used to simulate the outputs of tossing a quarter to get heads or tails? Suppose randomNumbers is a SecureRandom object.
• Question 2
3 out of 3 points
Overloaded methods always have the same _________.
• Question 3
3 out of 3 points
The identifiers in an enumeration ________.
• Question 4
3 out of 3 points
Declaring main as static allows the JVM to invoke main ________.
• Question 5
3 out of 3 points
Variables should be declared as fields only if ________.
• Question 6
3 out of 3 points
The java.text package contains classes for manipulating all of the following items except ________.
• Question 7
3 out of 3 points
Which set of statements totals the items in each row of two-dimensional array items, and displays each row’s total?
• Question 8
3 out of 3 points
Which of the following statements is false?
• Question 9
3 out of 3 points
A programmer must do the following before using an array:
• Question 10
0 out of 3 points
How many Book objects are created by the following statement?
Book[] books = new Book[10];
• Question 11
3 out of 3 points
In Java, multidimensional arrays ________.
• Question 12
3 out of 3 points
What do the following statements do?
double[] array;
array = new double[14];
• Question 13
3 out of 3 points
A constructor cannot:
• Question 14
3 out of 3 points
Constructors:
• Question 15
3 out of 3 points
Which syntax imports all static members of class Math?
• Question 16
3 out of 3 points
Using public set methods helps provide data integrity if:
• Question 17
3 out of 3 points
Instance variables declared final do not or cannot:
• Question 18
3 out of 3 points
When no access modifier is specified for a method or variable, the method or variable:
• Question 19
3 out of 3 points
Overriding a method differs from overloading a method because:
• Question 20
3 out of 3 points
Which statement is true when a superclass has protected instance variables?
• Question 21
3 out of 3 points
Which of the following statements is false?
• Question 22
3 out of 3 points
Which superclass members are inherited by all subclasses of that superclass?
• Question 23
3 out of 3 points
To avoid duplicating code, use ________, rather than ________.
• Question 24
3 out of 3 points
Using the protected keyword also gives a member:
• Question 25
3 out of 3 points
Which of the following is not a superclass/subclass relationship?
• Question 26
3 out of 3 points
Which of the following keywords allows a subclass to access a superclass method even when the subclass has overridden the superclass method?
• Question 27
3 out of 3 points
The default implementation of method clone of Object performs a ________.
• Question 28
3 out of 3 points
Consider the classes below, declared in the same file: Which of the statements below is false?
class A {
int a;
public A() {
a = 7;
}
}
class B extends A {
int b;
public B() {
b = 8;
}
}
• Question 29
3 out of 3 points
Private fields of a superclass can be accessed in a subclass
• Question 30
3 out of 3 points
Superclass methods with this level of access cannot be called from subclasses.
• Question 31
3 out of 3 points
When a subclass constructor calls its superclass constructor, what happens if the superclass’s constructor does not assign a value to an instance variable?
• Question 32
3 out of 3 points
Every class in Java, except ________, extends an existing class.
• Question 33
3 out of 3 points
Which of the following is the superclass constructor call syntax?
• Question 34
3 out of 3 points
The default equals implementation of class Object determines:
• Question 35
3 out of 3 points
Which of the following statements is false?
• Question 36
3 out of 3 points
When a superclass variable refers to a subclass object and a method is called on that object, the proper implementation is determined at execution time. What is the process of determining the correct method to call?
• Question 37
0 out of 3 points
Which of the following statements is false?
• Question 38
3 out of 3 points
Which of the following is not possible?
• Question 39
3 out of 3 points
Every object in Java knows its own class and can access this information through method .
• Question 40
3 out of 3 points
Which keyword is used to specify that a class will define the methods of an interface?
• Question 41
3 out of 3 points
Which of the following statements is false?
• Question 42
3 out of 3 points
Non-abstract classes are called ________.
• Question 43
3 out of 3 points
Which statement best describes the relationship between superclass and subclass types?
• Question 44
3 out of 3 points
Polymorphism enables you to:
• Question 45
3 out of 3 points
Which of the following is false?
• Question 46
3 out of 3 points
Which of the following statements is false?
• Question 47
3 out of 3 points
It is a UML convention to denote the name of an abstract class in ________.
• Question 48
3 out of 3 points
Which of the following could be used to declare abstract method method1 in abstract class Class1 (method1 returns an int and takes no arguments)?
• Question 49
3 out of 3 points
Classes and methods are declared final for all but the following reasons:
• Question 50
3 out of 3 points
A(n) ____________ class cannot be instantiated.
[Show More]
