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This module contains review questions and answers related to generic methods in Java.

Revised: Wed May 11 17:54:19 CDT 2016

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Table of Contents

Preface

This module is one in a collection of modules on Java Generics designed for teaching ITSE2317 - Java Programming (Intermediate) at Austin Community College in Austin, TX.

This and future modules in this series will be based on the Generics (Updated) section of The Java Tutorials from Oracle. (In the event that these links become broken, you should have no difficulty finding the Oracle material with an online search.)

You will find the learning resources for this module on the Oracle site at:

This module contains review questions and answers keyed to the material in the above document.

Once you study that material, you should be able to answer the review questions in this module.

Once you complete your study of all the material on generics , you should be able to answer the review questions at Questions and Exercises on the Oracle site.

The questions and the answers in this module 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: Generic methods are methods that introduce their own type parameters.

Answer 1

Question 2

True or False: Defining a generic method is similar to declaring a generic type. The type parameter's scope is limited to the class in which it is declared.

Answer 2

Question 3

True or False: Generic methods may be either static or non-static.

Answer 3

Question 4

True or False: Generic class constructors are not allowed.

Answer 4

Question 5

Design and write a class named A05Foo which, when combined with the class defined in Listing 1 will compile, run, and produce the output shown in Figure 1 .

Listing 1 - Question 5.
/*File Q05.java ************************************************/public class Q05{public static void main(String[] args){A05Foo fooA = new A05Foo(); System.out.println(fooA.cat("abcd ","efgh"));System.out.println( fooA.cat("abcd ",new Integer(500)));System.out.println( fooA.cat(new Integer(500)," abcd"));}//end main }//end class Q05//=============================================//
Figure 1 - Question 5.
abcd efgh abcd 500500 abcd

Answer 5

Question 6

Design and write a class named A06Foo which, when combined with the class defined in Listing 2 will compile, run, and produce the output shown in Figure 2 .

Listing 2 - Question 6.
/*File Q06.java ************************************************/public class Q06{public static void main(String[] args){A06Foo<String>fooA = new A06Foo<>(); fooA.set("_ijklm");System.out.println(fooA.cat("abcd ","efgh")); System.out.println(fooA.cat("abcd ",new Integer(500))); System.out.println(fooA.cat(new Integer(500)," abcd")); }//end main}//end class Q06 //=============================================//

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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