Question 1

A static method is one that can be used with a _____________.

Accepted Answer

A) instance variable 
B) local variable 
C) global variable 
D) the class name as a calling object 
A) instance variable 
B) local variable 
C) global variable 
D) the class name as a calling object

Question 2

All of the following are wrapper classes except:

Accepted Answer

A) String 
B) Integer 
C) Character 
D) Double 
A) String 
B) Integer 
C) Character 
D) Double

Question 3

Add a constructor and a copy constructor to the Book class created in question #13.

Accepted Answer

public BookString t,String a)
{
title =

Question 4

The Math method that returns the nearest whole number that is greater than or equal to its argument is:

Accepted Answer

A) round 
B) ceil 
C) floor 
D) all of the above 
A) round 
B) ceil 
C) floor 
D) all of the above

Question 5

A condition that allows a programmer to circumvent the private modifier and change the private instance variable is called:

Accepted Answer

A) a copy constructor 
B) a privacy leak 
C) a class invariant 
D) an anonymous object 
A) a copy constructor 
B) a privacy leak 
C) a class invariant 
D) an anonymous object

Question 6

Write ONE Java statement that computes and displays the value of 25.

Accepted Answer

System.out.println"T

Question 7

Deprecated methods should be used in new Java code.

Accepted Answer

A) True 
 B)False

Question 8

All versions of Java support automatic boxing.

Accepted Answer

A) True 
 B)False

Question 9

The program included in the Java SDK that allows a programmer to separate the class interface from the class implementation is called:

Accepted Answer

A) javac 
B) java 
C) javadoc 
D) none of the above 
A) javac 
B) java 
C) javadoc 
D) none of the above

Question 10

Wrapper classes are provided for all primitive Java types except Boolean.

Accepted Answer

A) True 
 B)False

Question 11

null can be used:

Accepted Answer

A) to indicate a variable has no real value 
B) in a Boolean expression with == 
C) as a placeholder 
D) all of the above 
A) to indicate a variable has no real value 
B) in a Boolean expression with == 
C) as a placeholder 
D) all of the above

Question 12

Primitive types are reference types.

Accepted Answer

A) True 
 B)False

Question 13

Only ______ copy/copies of a static variable are available to objects of a class.

Accepted Answer

A) one 
B) two 
C) three 
D) none of the above 
A) one 
B) two 
C) three 
D) none of the above

Question 14

A class that contains public methods that can change the data in the object of a class is called a/an:

Accepted Answer

A) mutable class 
B) immutable class 
C) invariant class 
D) none of the above 
A) mutable class 
B) immutable class 
C) invariant class 
D) none of the above

Question 15

Javadoc requires a comment to be delimited by _________ to be included in the extracted class interface.

Accepted Answer

A) // // 
B) /* */ 
C) /** */ 
D) " " 
A) // // 
B) /* */ 
C) /** */ 
D) " "

Question 16

You may use methods of the Math class without an import statement.

Accepted Answer

A) True 
 B)False

Question 17

When used with objects,what is the equality == )operator really comparing?

Accepted Answer

The == operator does not check that the

Question 18

You should avoid the use of null as an argument to a method.

Accepted Answer

A) True 
 B)False

Question 19

The conversion from an object of a wrapper class to a value of its associated primitive type is called:

Accepted Answer

A) Boxing 
B) Unboxing 
C) Converting 
D) Reinstantiating 
A) Boxing 
B) Unboxing 
C) Converting 
D) Reinstantiating

Question 20

Write ONE Java statement that computes and displays a random number between 1 and 25.

Accepted Answer

System.out.println"R

A static method is one that can be used with a _____________.

All of the following are wrapper classes except:

Add a constructor and a copy constructor to the Book class created in question #13.

The Math method that returns the nearest whole number that is greater than or equal to its argument is:

A condition that allows a programmer to circumvent the private modifier and change the private instance variable is called:

Write ONE Java statement that computes and displays the value of 2< sup >5< /sup >.

Deprecated methods should be used in new Java code.

All versions of Java support automatic boxing.

The program included in the Java SDK that allows a programmer to separate the class interface from the class implementation is called:

Wrapper classes are provided for all primitive Java types except Boolean.

null can be used:

Primitive types are reference types.

Only ______ copy/copies of a static variable are available to objects of a class.

A class that contains public methods that can change the data in the object of a class is called a/an:

Javadoc requires a comment to be delimited by _________ to be included in the extracted class interface.

You may use methods of the Math class without an import statement.

When used with objects,what is the equality == )operator really comparing?

You should avoid the use of null as an argument to a method.

The conversion from an object of a wrapper class to a value of its associated primitive type is called:

Write ONE Java statement that computes and displays a random number between 1 and 25.

Getting Started

Console Input and Output

Flow of Control

Defining Classes I

Arrays

Inheritance

Polymorphism and Abstract Classes

Exception Handling

File IO

Recursion

Uml and Patterns

Interfaces and Inner Classes

Generics and the Arraylist Class

Linked Data Structures

Collections,maps,and Iterators

Swing I

Swing II

Java Never Ends

Applets

Filters

Exam 5: Defining Classes II

A static method is one that can be used with a _____________.

All of the following are wrapper classes except:

Add a constructor and a copy constructor to the Book class created in question #13.

The Math method that returns the nearest whole number that is greater than or equal to its argument is:

A condition that allows a programmer to circumvent the private modifier and change the private instance variable is called:

Write ONE Java statement that computes and displays the value of 2< sup >5< /sup >.

Deprecated methods should be used in new Java code.

All versions of Java support automatic boxing.

The program included in the Java SDK that allows a programmer to separate the class interface from the class implementation is called:

Wrapper classes are provided for all primitive Java types except Boolean.

null can be used:

Primitive types are reference types.

Only ______ copy/copies of a static variable are available to objects of a class.

A class that contains public methods that can change the data in the object of a class is called a/an:

Javadoc requires a comment to be delimited by _________ to be included in the extracted class interface.

You may use methods of the Math class without an import statement.

When used with objects,what is the equality == )operator really comparing?

You should avoid the use of null as an argument to a method.

The conversion from an object of a wrapper class to a value of its associated primitive type is called:

Write ONE Java statement that computes and displays a random number between 1 and 25.

Getting Started

Console Input and Output

Flow of Control

Defining Classes I

Arrays

Inheritance

Polymorphism and Abstract Classes

Exception Handling

File IO

Recursion

Uml and Patterns

Interfaces and Inner Classes

Generics and the Arraylist Class

Linked Data Structures

Collections,maps,and Iterators

Swing I

Swing II

Java Never Ends

Applets

Filters