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This module contains review questions and answers keyed to the module titled Jb0160: Java OOP: Hello World.

Revised: Mon Mar 28 00:15:46 CDT 2016

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Table of contents

Preface

This module contains review questions and answers keyed to the module titled Jb0160: Java OOP: Hello World .

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 .

True or false? Applications are designed to be downloaded and executed on-line under control of a web browser, while applets are designed to beexecuted in a stand-alone mode from the command line.

Answer 1

Question 2

True or false? All applications and applets written in Java require a main method.

Answer 2

Question 3

Explain the relationship between the name of the class file for a Java application and the location of the main method in the application.

Answer 3

Question 4

Explain how you cause a method to be a class method in Java.

Answer 4

Question 5

True or false? Class methods can be called without the requirement to instantiate an object of the class:

Answer 5

Question 6

Write the source code for a Java application that will display your name and address on the standard output device. Show the command-linestatement that would be required to execute a compiled version of your application.

Answer 6

Question 7

Show the three styles of comment indicators that are supported by Java.

Answer 7

Question 8

True or false? Java allows free-standing methods outside of a class definition?

Answer 8

Question 9

What is the relationship between the name of the controlling class in an application and the names of the files that comprise that application.

Answer 9

Question 10

What is the relationship between the number of classes in an application and the number of separate files with the class extension that go to make up that application? How does this change when all the classes are defined in the samesource file?

Answer 10

Question 11

True or false? Class methods in Java can only be called relative to a specific object.

Answer 11

Question 12

Write the signature line for the main method in a Java application.

Answer 12

Question 13

Write a Java application that will display your name on the screen.

Answer 13

Listings

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 being visible on the screen at thesame 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 13

Listing 1 . Listing for Answer 13.
/*File SampProg02.java from lesson 10 Copyright 1997, R.G.BaldwinWithout reviewing the following solution, write an application that will display your name on the screen.**********************************************************/ class SampProg02 { //define the controlling classpublic static void main(String[] args){ //define mainSystem.out.println("Dick Baldwin"); }//end main}//End SampProg02 class.

Questions & Answers

what is microbiology
Agebe Reply
What is a cell
Odelana Reply
what is cell
Mohammed
how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
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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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