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This module contains review questions and answers keyed to the module titled Jb0220: Java OOP: Statements and Expressions.

Revised: Mon Mar 28 14:27:27 CDT 2016

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Table of contents

Preface

This module contains review questions and answers keyed to the module titled Jb0220: Java OOP: Statements and Expressions .

The questions and the answers are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.

Questions

Question 1 .

A Java program is composed of a series of what?

Answer 1

Question 2

Statements in Java are constructed from what?

Answer 2

Question 3

Describe an expression in Java.

Answer 3

Question 4

What does a method call evaluate to in Java?

Answer 4

Question 5

True or false? Java supports named constants. If false, explain why.

Answer 5

Question 6

Provide a code fragment that illustrates the syntax for creating a named constant in Java.

Answer 6

Question 7

True or false? Java supports a constant type. If false, explain why.

Answer 7

Question 8

What is the common method of controlling the order of evaluation of expressions in Java?

Answer 8

Question 9

If you don't use matching parentheses to control the order of evaluation of expressions, what is it that controls the order of evaluation?

Answer 9

What is the meaning of the following two images?

This image was inserted here simply to insert some space between the questions and the answers to keep them from beingvisible on the screen at the same time.

The image is also an example of the kinds of things that we do in my course titled ITSE 2321, Object-Oriented Programming.

Missing image

This image was also inserted for the purpose of inserting space between the questions and the answers.

Missing image

Answers

Answer 9

If you don't provide matching parentheses to control the order of evaluation, the order will be determined by the precedence of the operators with theoperations having higher precedence being evaluated first. For example, multiply and divide have higher precedence than add and subtract.

Back to Question 9

Answer 8

You can control the order of evaluation by the use of matching parentheses.

Back to Question 8

Answer 7

False. Java does not support a constant type. However, in Java, it is possible to achieve the same result by declaring and initializing a variable andmaking it final .

Back to Question 7

Answer 6

The syntax for creating a named constant in Java is shown below.

A named constant in Java final float PI = 3.14159;

Back to Question 6

Answer 5

True. Java supports named constants that are constructed using variable declarations with the final keyword.

Back to Question 5

Answer 4

A method call evaluates to the value returned by the method.

Back to Question 4

Answer 3

An expression is a specific combination of operators and operands that evaluates to a particular value. The operands can be variables, constants, ormethod calls.

Back to Question 3

Answer 2

Statements in Java re constructed from expressions.

Back to Question 2

Answer 1

A Java program is composed of a series of statements.

Back to Question 1

Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Jb0220r Review: Statements and Expressions
  • File: Jb0220r.htm
  • Originally published: 1997
  • Published at cnx.org: 11/24/12
  • Revised: 12/04/14
Disclaimers:

Financial : Although the Connexions site makes it possible for you to download aPDF file for this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version ofthe module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.

-end-

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
what is titration
John Reply
what is physics
Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
what is the dimension formula of energy?
David Reply
what is viscosity?
David
what is inorganic
emma Reply
what is chemistry
Youesf Reply
what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
please, I'm a physics student and I need help in physics
Adjanou
chemistry could also be understood like the sexual attraction/repulsion of the male and female elements. the reaction varies depending on the energy differences of each given gender. + masculine -female.
Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
Sahid Reply
you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
what's motion
Maurice Reply
what are the types of wave
Maurice
answer
Magreth
progressive wave
Magreth
hello friend how are you
Muhammad Reply
fine, how about you?
Mohammed
hi
Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo Reply
Who can show me the full solution in this problem?
Reofrir Reply
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Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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