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COSC2429 Introduction to Programming

Assignment 2 (15%)

Deadline: 11.59 pm Monday of week 10 (Apr 23, 2011)

Write a Java program with two classes as follow:

One class called SimpleCal with 6 operations. The first four functions perform 4

basic calculations add (+), subtract (-), multiply (*), and divide (/). Each function has

2 parameters (double) and returns the result in double. In addition, SimpleCal has

a function which takes a positive integer as parameter and return true if that integer

is a prime and false if it is not. SimpleCal also has another method that takes a

positive integer as parameter and prints out all the prime numbers that are smaller

than or equal to that parameter.

The other class is World with 2 methods:•  showMenu: prints out the menu as follow:

Simple Calculator Menu:

1 – Add (+)

2 – Subtraction (-)

3 – Multiply (*)

4 – Divide (/)

5 – Check prime number

6 – Print prime numbers

7 - Exit

•  main: allowing the user to select a choice from the above menu and then enter

additional input(s) depending on the operation selected. After that, run the

relevant function/method & print out the result(s) of the operation.

You can assume that the user will always enter correct the data types as required but

he/she may enter unsuitable values. In that case, you should allow the user to re-enter

until the value(s) are valid. You are allowed to create additional properties,

methods/functions as you find appropriate.

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Deadline & Submission

The deadline of this assignment is 11.59 pm Monday of week 10 (Apr 23,

2012). Before the deadline, you must submit your assignment to Blackboard as

follows:

1.  Create a folder named studentNumber_FullName_A2. Example:

s1234567_NguyenVanMinh_A2 2.  Copy your Java program (the whole NetBeans project folder of the Java program)

into the above folder.

3.  Compress the folder into a zip file using 7-Zip. The zip file now should have the

name as studentNumber_FullName_A2.zip. Example:

s1234567_NguyenVanMinh_A2.zip 4.  Submit the zip file by uploading it to Blackboard > COSC2429 > Assignments

> Assignment 2. Remember to click at "Submit", not "Save", to have your

assignment submitted because "Save" will not submit your assignment. You must

use Internet Explorer to submit as the submission feature in Blackboard doesn'twork with other web browsers.

Note that Blackboard only allow you to submit ONE TIME thus you must carefully

review your files before submitting and follow the above instructions strictly. Failure

to do so will result in a 50% or 100% penalty of the assignment.

Late submission of assignments will be penalised as follows:

•  For assignments 1 to 5 days late, a penalty of 10% (of total available marks) per

day.

•  For assignments more than 5 days late, a penalty of 100% will apply.

Plagiarism NoticeThis assignment is an individual assignment thus it must be your own work. Any

submission found in whole or in part plagiarized will be given zero marks and will not

count towards your assessment. If an award of zero marks means that you do not pass

the assignment hurdle then you will fail the course.

Marking Criteria

Criteria Marks

Correct program behaviours, calculation and display as required 15Correct program design (classes/objects, properties,

methods/functions, parameters) and good use of method variables 10

Good coding style (follow Java naming convention, good

indentation, have relevant comments in code) 5

Total 30