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This module contains review questions and answers related to bounded type parameters in Java.

Revised: Wed May 11 18:05:10 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 listed documents.

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 tomake it easy for you to navigate from the question to the answer and back again.

Questions

Question 1 .

True or False: Bounded type parameters are used to restrict the types that can be used as arguments in a parameterized type.

Answer 1

Question 2

True or False: To declare a bounded type parameter, list the type parameter's name, followed by the extends or implements keyword, followed by its upper bound class or interface.

Answer 2

Question 3

True or False: A type parameter can have multiple bounds as shown in Figure 1 .

Figure 1 - Question 3.
<T extends B1&B2&B3>

Answer 3

Question 4

True or False: The code shown in Listing 1 will compile and run successfully producing the output shown in Figure 2 .

Listing 1 - Question 4.
/*File Q04.java ************************************************/import java.awt.*; /*Note the following inheritance hierarchyjava.lang.Object java.awt.Componentjava.awt.Container java.awt.Windowjava.awt.Frame */public class Q04{public static void main(String[] args){Foo<Window>aFoo = new Foo<>(); aFoo.runIt();}//end main }//end class Q04//=============================================// class Foo<T extends Frame>{ public void runIt(){System.out.println("Object instantiated."); }//end runIt}//end Foo
Figure 2 - Question 4.
Object instantiated.

Answer 4

Question 5

Define and write a class named A05Foo which, when combined with the code shown in Listing 2 will produce the output shown in Figure 3 .

Listing 2 - Question 5.
/*File Q05.java ************************************************/import java.awt.*; /*Note the following inheritance hierarchyjava.lang.Object java.awt.Componentjava.awt.Container java.awt.Windowjava.awt.Frame */public class Q05{public static void main(String[] args){A05Foo<Window>aA05Foo = new A05Foo<>(); aA05Foo.runIt();}//end main }//end class Q05//=============================================//

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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