AP Computer Science A Reviews 3-4

Question 1

Can a constructor have ANY return type?

Accepted Answer

No, you can't have anything, not even void

Question 2

Public variables violate the principle of encapsulation.

Accepted Answer

True

Question 3

Can you call a class via a method?

Accepted Answer

No

Question 4

How do we use Applet methods?

Accepted Answer

public void init (), Load the applet by initialize. Its simple., All of the above except C

Question 5

True or False: A string literal is inside single quotation marks.

Accepted Answer

False

Question 6

In Java, the operators *, /, and % typically have priority over + and -.

Accepted Answer

True

Question 7

What does this code segment print out?

Accepted Answer

False, True

Question 8

How do we properly determine the relationship with a driver program?

Accepted Answer

All of the above

Question 9

How can we overload a method?

Accepted Answer

Use the same method name with different parameters

Question 10

A run-time error is just like dividing by zero.

Accepted Answer

True, True, and run-time errors are just like dividing by zero.

Question 11

How do we encapsulate variables so that only specific methods could call it?

Accepted Answer

private

Question 12

What is a method declaration?

Accepted Answer

defines code that is executed

Question 13

In this code segment, what will it output?

Accepted Answer

4, 410

Question 14

What is a type of escape sequence?

Accepted Answer

Question 15

What is a difference between formal and actual parameters?

Accepted Answer

All of the above

Question 16

What is a simple parameter?

Accepted Answer

A method that is invoked, A value that is passed like a type of yellow journalism

Question 17

What does Chapter 4 in general target?

Accepted Answer

All of the above except A

Question 18

Can aggregate objects be made up of other objects or states?

Accepted Answer

True

Question 19

What is the most common Java package?

Accepted Answer

Java.lang

Question 20

What is Pig Latin?

Accepted Answer

A completely fictional language by going first L. to the end

Question 21

What is the definition for modularization....?

Accepted Answer

Breaking down a complex problem into simpler parts

Question 22

What does this code segment return?

Accepted Answer

Returns the first plus the last name

Question 23

What does this code output execute?

Accepted Answer

Returns the user input times twice the number

Question 24

Can we have anything in a constructor that returns a double or a String?

Accepted Answer

No, the answer here is null and void., No, how is the constructor worthy of passing anything?

Question 25

Can a precondition be true after the method is called?

Accepted Answer

False

Question 26

What does a constructor require?

Accepted Answer

Shouldn't return a value., The method name, but null and void as it is...

Question 27

What is an exception in computer programming?

Accepted Answer

An error affecting a particular method or application

Question 28

What are two views that an object can have via encapsulation?

Accepted Answer

Public, Private

Question 29

You can have a double quote escape sequence.

Accepted Answer

True

Question 30

As a programmer, when we invoke a method, how do we jump into the method?

Accepted Answer

The flow of control jumps from the main method to called one

Question 31

What are the characteristics of Pig Latin?

Accepted Answer

Each word of a sentence is changed by adding "ay", All of the above except B

Question 32

How do we use a return statement?

Accepted Answer

Can be anything, or can be a void return type

Question 33

How do we convert a typical English word into Pig Latin?

Accepted Answer

Put a vowel, a consonant blend or single consonant

AP Computer Science A Reviews 3-4

Questions 33

AP Computer Science A Reviews 3-4

Questions 33