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PRG 420 Week 1 DQ 1
PRG 420 Week 1 DQ 2
Watch the first and second videos for Week 1.
Explain a little about the Java Virtual Machine,
what it executes, how it might be similar to any
other language, and how it is different from a
native language, such as C.
Java is a portable language, and being an
object-oriented programming language, it also
encourages component reusability. How does Java
achieve these two important features? How are
these features desirable in modern software
engineering?
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PRG 420 Week 1 Individual Assignment Hello world
PRG 420 Week 1 DQ 3
Create a program in Java that displays Hello
world! Take a screen shot that shows the
programs successful compilation and execution.
Then submit your program along with the screen
shot.
You are a bank manager and you are helping a new
bank teller understand the kind of accounts the
bank offers. If a customer comes in asking to
open a new savings account, the teller needs to
ask what kind of account--passbook savings or
certificate of deposit--the customer would like
to open. Remind the customer that all accounts
with our bank are insured by the FDIC.
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PRG 420 Week 2 DQ 2
PRG 420 Week 2 DQ 1
What are the three types of errors that you can
encounter in a Java program? Describe them, and
explain how you would minimize the errors. What
are some examples of errors that you have seen
before?
Please watch the first three videos for Week 2
(around 40 minutes). Explain how an outside class
may be given access to find the value of a
private instance variable, or to change the value
of a private instance variable. Why does this add
value to your program?
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PRG 420 Week 2 Individual Assignment Simple Commis
PRG 420 Week 2 DQ 3
A class is a blueprint for an object. A class may
have a default constructor, a constructor with
arguments, accessor methods, mutator methods,
public fields, and private fields. Choose a
category (such as animal, vehicle, and so on) and
describe how you would design a class for it.
Write a Java application using NetBeans
Integrated Development Environment (IDE) that
calculates the total annual compensation of a
salesperson. Consider the following factors A
salesperson will earn a fixed salary of 40,000.
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PRG 420 Week 3 DQ 1
PRG 420 Week 3 DQ 2
Please watch the first and the fifth (next to the
last) videos for Week 3 (feel free to use the
transcripts, too!) . Tell me about the
similarities between the conditionals in if
statements and the conditionals in while
statements.
Convert the following program from for loop to
while loop. class ArithmeticProgression
public static void main (String args) int
sum 0 for (int i 1 i lt 1000 i)
sum sum i
System.out.println(Integer.toString(sum))

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PRG 420 Week 3 DQ 4
PRG 420 Week 3 DQ 3
There are 3 kinds of loopsfor loop, while loop,
and do while loop. Under which circumstances
would each kind of loop be more appropriate?
Explain your answers using specific examples.
Consider the following conditions CONDITION 1
while ( !(cChoice 'Q' cChoice 'q')
)CONDITION 2 while ( cChoice ! 'Q' cChoice
! 'q' ) Do Conditions 1 and 2 give the same
result? What tool or technique would you use to
explain the result?
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PRG 420 Week 4 DQ 1
PRG 420 Week 3 Individual Assignment Simple Commis
Modify the Week Two Java application using Java
NetBeans IDE to meet these additional and
changed business requirements The company has
recently changed its total annual
compensation policy to improve sales. A
salesperson will continue to earn a fixed salary
of 40,000.
Assuming you want an array (named many) of seven
ints what would be the easiest way to write the
code if you wanted many to contain all zeros?
What if you wanted many to contain a selection of
seven values, that were not all zeros? What would
be the subscripts of all the elements of many?
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PRG 420 Week 4 DQ 3
PRG 420 Week 4 DQ 2
What is the difference between arrays and
ArrayList? What are the advantages and
disadvantages of an ArrayList, and when should
you use an ArrayList over a simple array?
What is the difference between string and
StringBuilder? What are the advantages and
disadvantages of a StringBuilder, and when should
you use a StringBuilder over a simple String?
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PRG 420 Week 5 DQ 1
PRG 420 Week 4 Individual Assignment Write a simpl
Modify the Week Three Java application using
Java NetBeans IDE to meet these additional and
changed business requirements The application
will now compare the total annual compensation of
two salespersons.
Please explain one use for a static variable in a
class. Please explain how you might use one
static method ( not main() ) in a class.
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 PRG 420 Potential Instructors / tutorialrank.com
PRG 420 Week 5 DQ 3
PRG 420 Week 5 DQ 2
In your opinion, what are the three biggest
challenges in planning and designing a solution
for a programming problem? What can you do to
overcome these challenges? How would you apply
these techniques to the programs in this class?
Using an example from your work or daily life,
describe an "is-a" relationship. Why is an "is-a"
relationship important when designing an
inheritance between classes?
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PRG 420 Week 5 Team Assignment Resuability
In the real world, an entire program is rarely
written from scratch. It is very likely that
there are classes or methods that already exist.
The key to using these existing modules
successfully depends on how modularly the classes
or methods are written.

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