Question 1

The printf method can be used to output multiple formatted values.

Accepted Answer

A) True 
 B)False  True

Question 2

Echoing input is good programming practice because it can reveal problems in the input.

Accepted Answer

A) True 
 B)False  True

Question 3

What Java package includes the class Scanner?

Accepted Answer

A) awt 
B) swing 
C) io 
D) util 
A) awt 
B) swing 
C) io 
D) util D

Question 4

Standard code libraries in Java are called:

Accepted Answer

A) Methods 
B) Classes 
C) Packages 
D) Statements 
A) Methods 
B) Classes 
C) Packages 
D) Statements

Question 5

Write a complete Java console application that prompts the user for two numbers,multiplies the numbers,and then displays the result to the user.

Accepted Answer

import java.util.Scanner; public class C

Question 6

What is whitespace and why is it import when reading input from the keyboard using the Scanner class?

Accepted Answer

Whitespace is any string of characters,s

Question 7

The Scanner class has a method next that allows an entire line of string text to be read.

Accepted Answer

A) True 
 B)False

Question 8

The Java method printf is based on the ________ language.

Accepted Answer

A) Pascal 
B) C++ 
C) C 
D) ADA 
A) Pascal 
B) C++ 
C) C 
D) ADA

Question 9

Why is echoing user input a good programming practice?

Accepted Answer

Echoing input is a technique that is com

Question 10

Explain the significance of the pattern string used by the DecimalFormat object,and give an example of a valid pattern.

Accepted Answer

The pattern string represents the format

Question 11

If there is no loss of efficiency in importing an entire Java package instead of importing only classes you use into your program,why would you not just import the entire package?

Accepted Answer

Importing only the classes you need into

Question 12

Which statement or group of statements produces the output: Java programming is fun!

Accepted Answer

A) System.out.print(Java programming); System.out.print(is fun!); 
B) System.out.println(Java programming is fun!); 
C) System.out.println("Java programming"); System.out.println(" is fun!"); 
D) System.out.print("Java programming") System.out.println(" is fun!"); 
A) System.out.print(Java programming); System.out.print(is fun!); 
B) System.out.println(Java programming is fun!); 
C) System.out.println("Java programming"); System.out.println(" is fun!"); 
D) System.out.print("Java programming") System.out.println(" is fun!");

Question 13

Write a Java statement to display your name in the console window.

Accepted Answer

System.out

Question 14

Write a Java program to create and display 57.32% using the DecimalFormat class.Include the necessary import statement to use the DecimalFormat class.

Accepted Answer

import java.text.DecimalFormat

Question 15

Write ONE Java statement to display your first and last name on two separate lines.

Accepted Answer

System.out

Question 16

The method printf is used the same way as the method println but has the added feature that allows you to add formatting instructions.

Accepted Answer

A) True 
 B)False

Question 17

If a hyphen is added after the % in a format specifier,the output will be _________.

Accepted Answer

A) Left justified 
B) Right justified 
C) Centered 
D) None of the above 
A) Left justified 
B) Right justified 
C) Centered 
D) None of the above

Question 18

Efficiency is lost in importing the entire package instead of importing the classes you use.

Accepted Answer

A) True 
 B)False

Question 19

What does it mean to prompt the user?

Accepted Answer

Prompting the user means to display a me

Question 20

The statement: System.out.printf("%6.2f",597.7231); displays:

Accepted Answer

A) 597.723 
B) 597.72 
C) 000597.72 
D) None of the above 
A) 597.723 
B) 597.72 
C) 000597.72 
D) None of the above

The printf method can be used to output multiple formatted values.

Echoing input is good programming practice because it can reveal problems in the input.

What Java package includes the class Scanner?

Standard code libraries in Java are called:

Write a complete Java console application that prompts the user for two numbers,multiplies the numbers,and then displays the result to the user.

What is whitespace and why is it import when reading input from the keyboard using the Scanner class?

The Scanner class has a method next that allows an entire line of string text to be read.

The Java method printf is based on the ________ language.

Why is echoing user input a good programming practice?

Explain the significance of the pattern string used by the DecimalFormat object,and give an example of a valid pattern.

If there is no loss of efficiency in importing an entire Java package instead of importing only classes you use into your program,why would you not just import the entire package?

Which statement or group of statements produces the output: Java programming is fun!

Write a Java statement to display your name in the console window.

Write a Java program to create and display 57.32% using the DecimalFormat class.Include the necessary import statement to use the DecimalFormat class.

Write ONE Java statement to display your first and last name on two separate lines.

The method printf is used the same way as the method println but has the added feature that allows you to add formatting instructions.

If a hyphen is added after the % in a format specifier,the output will be _________.

Efficiency is lost in importing the entire package instead of importing the classes you use.

What does it mean to prompt the user?

The statement: System.out.printf("%6.2f",597.7231); displays:

Getting Started

Flow of Control

Defining Classes I

Defining Classes Ii

Arrays

Inheritance

Console Input and Output

Exception Handling

File IO

Uml and Patterns

Interfaces and Inner Classes

Generics and the Arraylist Class

Linked Data Structures

Collections and Iterators

Swing I

Swing II

Java Never Ends

Recursion

Applets

Filters

Exam 2: Console Input and Output

The printf method can be used to output multiple formatted values.

Echoing input is good programming practice because it can reveal problems in the input.

What Java package includes the class Scanner?

Standard code libraries in Java are called:

Write a complete Java console application that prompts the user for two numbers,multiplies the numbers,and then displays the result to the user.

What is whitespace and why is it import when reading input from the keyboard using the Scanner class?

The Scanner class has a method next that allows an entire line of string text to be read.

The Java method printf is based on the ________ language.

Why is echoing user input a good programming practice?

Explain the significance of the pattern string used by the DecimalFormat object,and give an example of a valid pattern.

If there is no loss of efficiency in importing an entire Java package instead of importing only classes you use into your program,why would you not just import the entire package?

Which statement or group of statements produces the output: Java programming is fun!

Write a Java statement to display your name in the console window.

Write a Java program to create and display 57.32% using the DecimalFormat class.Include the necessary import statement to use the DecimalFormat class.

Write ONE Java statement to display your first and last name on two separate lines.

The method printf is used the same way as the method println but has the added feature that allows you to add formatting instructions.

If a hyphen is added after the % in a format specifier,the output will be _________.

Efficiency is lost in importing the entire package instead of importing the classes you use.

What does it mean to prompt the user?

The statement: System.out.printf("%6.2f",597.7231); displays:

Getting Started

Flow of Control

Defining Classes I

Defining Classes Ii

Arrays

Inheritance

Console Input and Output

Exception Handling

File IO

Uml and Patterns

Interfaces and Inner Classes

Generics and the Arraylist Class

Linked Data Structures

Collections and Iterators

Swing I

Swing II

Java Never Ends

Recursion

Applets

Filters