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This module contains review questions and answers keyed to the module titled Jb0240: Java OOP: Arrays and Strings.

Revised: Mon Mar 28 16:31:25 CDT 2016

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Table of contents

Preface

This module contains review questions and answers keyed to the module titled Jb0240: Java OOP: Arrays and Strings .

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? Arrays and Strings are true objects. If false, explain why.

Answer 1

Question 2

True or false? It is easy to write outsides the bounds of a String or an array. If false, explain why.

Answer 2

Question 3

You must declare a variable capable of holding a reference to an array object before you can use it. In declaring the variable, you must provide two importantpieces of information. What are they?

Answer 3

Question 4

Provide code fragments that illustrate the two different syntaxes that can be used to declare a variable capable of holding a reference to an array objectthat will store data of type int.

Answer 4

Question 5

True or false? When you declare a variable capable of holding a reference to an array object, the memory required to contain the array object is automaticallyallocated. If false, explain why and show how memory can be allocated.

Answer 5

Question 6

True or false? It is required that you simultaneously declare the name of the variable and cause memory to be allocated to contain the array object in a singlestatement. If false, explain why and show code fragments to illustrate your answer.

Answer 6

Question 7

True or false? Array indices always begin with 1. If false, explain why.

Answer 7

Question 8

What is the name of the property of arrays that can be accessed to determine the number of elements in the array? Provide a sample code fragment thatillustrates the use of this property.

Answer 8

Question 9

What types of data can be stored in array objects?

Answer 9

Question 10

True or false? Just as in other languages, when you create a multi-dimensional array, the secondary arrays must all be of the same size. Iffalse, explain your answer. Then provide a code fragment that illustrates your answer or refer to a sample program in Jb0240: Java OOP: Arrays and Strings that illustrates your answer.

Answer 10

Question 11

True or false? Just as in other languages, when declaring a two-dimensional array, it is necessary to declare the size of the secondary dimension when thearray is declared. If false, explain your answer. Then provide a code fragment that illustrates your answer or refer to a sample program in Jb0240: Java OOP: Arrays and Strings that illustrates your answer.

Answer 11

Question 12

True or false? Java allows you to assign one array to another. Explain what happens when you do this. Then provide a code fragment that illustrates youranswer or refer to a sample program in Jb0240: Java OOP: Arrays and Strings that illustrates your answer.

Questions & Answers

what is mutation
Janga Reply
what is a cell
Sifune Reply
how is urine form
Sifune
what is antagonism?
mahase Reply
classification of plants, gymnosperm features.
Linsy Reply
what is the features of gymnosperm
Linsy
how many types of solid did we have
Samuel Reply
what is an ionic bond
Samuel
What is Atoms
Daprince Reply
what is fallopian tube
Merolyn
what is bladder
Merolyn
what's bulbourethral gland
Eduek Reply
urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
onuoha Reply
State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
Jeremiah
what is heart
Konadu Reply
how is urine formed in human
Konadu
how is urine formed in human
Rahma
what is the diference between a cavity and a canal
Pelagie Reply
what is the causative agent of malaria
Diamond
malaria is caused by an insect called mosquito.
Naomi
Malaria is cause by female anopheles mosquito
Isaac
Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
Olalekan
a canal is more needed in a root but a cavity is a bad effect
Commander
what are pathogens
Don Reply
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
Zainab
A virus
Commander
Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
Davonte
what are the functions of Endocrine and pituitary gland
Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
Achor
what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
Alfreda
Biology is the study of how living organisms live and survive in a specific environment
Sifune
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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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