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PRG 420 Knowledge is divine--prg420.com PRG 420 Week 1 DQ 1 For more course tutorials visit www.prg420.com 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++.
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 1 DQ 2 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 1 DQ 3 For more course tutorials visit www.prg420.com 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. You should explain that all accounts earn some interest; a savings account’s interest is compounded monthly.
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 2 DQ 1 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 2 DQ 2 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 2 DQ 3 For more course tutorials visit www.prg420.com 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.
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 3 DQ 1 For more course tutorials visit www.prg420.com 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.
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 3 DQ 2 For more course tutorials visit www.prg420.com Convert the following program from for loop to while loop. class ArithmeticProgression { public static void main (String [] args) { int sum = 0; for (inti = 1; i <= 1000; i++) { sum = sum + i; System.out.println(Integer.toString(sum)); } } }
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 3 DQ 3 For more course tutorials visit www.prg420.com There are 3 kinds of loops—for loop, while loop, and do while loop. Under which circumstances would each kind of loop be more appropriate? Explain your answers using specific examples.
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 3 DQ 4 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 4 DQ 1 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 4 DQ 2 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 4 DQ 3 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 5 DQ 1 For more course tutorials visit www.prg420.com 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.
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 5 DQ 2 For more course tutorials visit www.prg420.com 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?
PRG 420 Knowledge is divine--prg420.com PRG 420 Week 5 DQ 3 For more course tutorials visit www.prg420.com 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?
