it401,moayad

College of Computing and Informatics

Assignment #2
Deadline: Tuesday 10/11/2025 @ 23:59
[Total Mark for this Assignment is 8]
Student Details:
Name: ###

ID: ###

CRN: ###
Instructions:

• You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on
Blackboard via the allocated folder. These files must not be in compressed format.

• It is your responsibility to check and make sure that you have uploaded both the correct files.
• Zero mark will be given if you try to bypass the SafeAssign (e.g. misspell words, remove spaces between
words, hide characters, use different character sets, convert text into image or languages other than English
or any kind of manipulation).

• Email submission will not be accepted.
• You are advised to make your work clear and well-presented. This includes filling your information on the cover
page.

• You must use this template, failing which will result in zero mark.
• You MUST show all your work, and text must not be converted into an image, unless specified otherwise by
the question.

• Late submission will result in ZERO mark.
• The work should be your own, copying from students or other resources will result in ZERO mark.
• Use Times New Roman font for all your answers.

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Question One

Pg. 01

Learning
Outcome(s):

Question One

2 Marks

Write a Java program that defines two static methods in addition to the main() method.
Explain the basic
principles of

– The first method, computeProduct(int a, int b), receives two integer parameters,

programming,

computes their product, and prints whether the product is even or odd.

concept of

– The third method, isEven(int n), returns true if the given integer is even, and

language, and

false otherwise.

universal

In the main() method:

constructs of
programming

– Print your real student ID on the first line in the format:

languages

My student ID is S220002757
– Call the computeProduct() method using the last two digits of your real student
ID as arguments.
– Call isEven() method using the last digit of your real student ID as an argument.
– Display the results using descriptive sentences similar to the example output
below.
You must include a screenshot of the program’s output using your real student
ID. If you are not using your real ID, you will get zero marks.
Typical Output Example 1

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Typical Output Example 2

My student ID is 1133445557

My student ID is 1122334465

Your last 2 digits product is odd

Your last 2 digits product is even

Your last digit is odd

Your last digit is odd

Question Two

Pg. 02
Learning
Outcome(s):
Explain the basic
principles of
programming,
concept of
language, and
universal
constructs of
programming
languages

Restricted – ‫مقيد‬

Question Two

2 Marks

Write a Java program that performs the following:
1- Implements method overloading to calculate the area of different shapes:
–

A square, using one integer parameter (side length).

–

A rectangle, using two integer parameters (length and width).

–

A circle, using one double parameter (radius).

2- Demonstrates the use of a class-level (static) variable to store and display the
calculated area in all overloaded methods.
3- Utilizes the built-in Math.PI constant (from the Math class) to calculate the area
of the circle accurately.

Question Three

Pg. 03
Learning
Outcome(s):
Develop a
program based on
specification
using
programming
language
elements

Question Three
Write a Java program that:

1- Creates an integer array named numbers contains 5 elements initialized to {10,
20, 30, 40, 50}.
2- Use Scanner to prompt the user to enter an index to display the value stored at
that index.
3- Since user can enter any number, use a try-catch-finally block to handle any
possible ArrayIndexOutOfBoundsException.
4- In the “finally” block, print “Program execution completed.”

including syntax,
data types,
conditional
statement, control
structures,
procedures,
arrays, objects
and classes.

Restricted – ‫مقيد‬

2 Marks

Expected Output Example:
Enter an index (0–4): 6
Invalid index! Please enter a value between 0 and 4.
Program execution completed.

Question Four

Pg. 04

Learning
Outcome(s):
Explain the basic
principles of
programming,
concept of
language, and
universal
constructs of
programming
languages

Restricted – ‫مقيد‬

Question Four

2 Marks

Fully explain the difference between instance variables, static variables, and local
variables in Java. In your explanation, include their definition, how memory is
allocated, and when each type should be used.

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