Intro Java - Review

Question 1

To use a class in another package you need to __________________ it.

Accepted Answer

import

Question 2

Collection of code - programmed & translated by someone else - ready for use in your programs

Accepted Answer

Library

Question 3

A reserved word used to declare and define constants is:

Accepted Answer

Final

Question 4

A value that cannot be changed by a program is called a:

Accepted Answer

constant

Question 5

In Java, every statement must end with this symbol.

Accepted Answer

;

Question 6

What does an object store its data in?

Accepted Answer

instance variables

Question 7

Information that is given to the user by the program is called:

Accepted Answer

Output

Question 8

What is the name of the constructor for the BankAccount class?

Accepted Answer

BankAccount

Question 9

A data type that can contain any number of characters is called:

Accepted Answer

String

Question 10

The _____ statement is used to implement a decision based on a condition or set of conditions

Accepted Answer

If

Question 11

When comparing values in an if statement, what relational operator is used to mean not equal?

Accepted Answer

!=

Question 12

What is the process of hiding object data and providing methods for data access called?

Accepted Answer

encapsulation

Question 13

Encapsulation allows a programmer to use a class without having to know its________________.

Accepted Answer

implementation

Question 14

Information provided to the program to make it run correctly:

Accepted Answer

Input

Question 15

What term is used to refer to a sequence of characters enclosed in quotation marks?

Accepted Answer

String

Question 16

A single letter, symbol, or digit is called a

Accepted Answer

Character

Question 17

Converting a value from one type to a different type is called:

Accepted Answer

Casting

Question 18

To place one string after another to create a new string; adding strings together:

Accepted Answer

Concatenate

Question 19

In Java, the = sign means what?

Accepted Answer

A value is assigned to a variable or constant

Question 20

A ____________ is a collection of classes with a related purpose.

Accepted Answer

package

Question 21

What is the output of the following Java statement?

Accepted Answer

6+4

Question 22

Java has two Boolean operators that combine conditions; they are:

Accepted Answer

&& (and) and || (or)

Question 23

To increase or add to a value is to:

Accepted Answer

Increment

Question 24

Private instance variables _____________________

Accepted Answer

can only be accessed by methods of the same class

Question 25

When a Java application starts, what is the name of the method that is executed?

Accepted Answer

main

Question 26

Every Java program consists of one or more of these fundamental building blocks.

Accepted Answer

Class

Question 27

What is the length of the string "Java Program"?

Accepted Answer

12

Question 28

What is the syntax for calling the println method on the object System.out?

Accepted Answer

System.out.println ("Any message");

Question 29

The name of the constructor is always the same as the name of the _______________________.

Accepted Answer

class

Question 30

What is the return type of a constructor?

Accepted Answer

A constructor does not have a return type.

Question 31

Error caused because the computer will only store a specific number of digits-no rounding.

Accepted Answer

Round Off Errors

Question 32

The Boolean data type has exactly two values. What are they?

Accepted Answer

false and true

Question 33

You should declare all instance variables as _______________.

Accepted Answer

private

Question 34

By convention, classes begin with a(n)

Accepted Answer

Uppercase letter

Question 35

Parameters to methods are enclosed by these symbols.

Accepted Answer

()

Question 36

Each object of a class has its own set of ____________________.

Accepted Answer

instance variables

Question 37

What is the name of the file declaring the class named MyClass?

Accepted Answer

MyClass.java

Intro Java - Review

Questions 37

Intro Java - Review

Questions 37