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Assignment 2
Deadline: Day 24/11/2024 @ 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.
Question One
Pg. 01
Learning
Outcome(s):
Develop a
program based on
specification
using
programming
language
elements
including syntax,
data types,
conditional
statement, control
structures,
procedures,
arrays, objects
and classes.
Question One
3 Marks
1. Create a class named Person:
o Add the following instance variables:
▪ id (int): Stores a unique identifier for the person.
▪ name (String): Stores the name of the person.
▪ age (int): Stores the age of the person.
2. Implement the following methods in the Person class:
o setId(int id): Assigns a value to the id variable.
o setName(String name): Assigns a value to the name variable.
o setAge(int age): Assigns a value to the age variable.
o getId(): Returns the value of id.
o getName(): Returns the value of name.
o getAge(): Returns the value of age.
3. Write a test program to demonstrate the Person class:
o Create an instance of the Person class.
o Use the setId, setName, and setAge methods to assign values to the
instance.
o Use the getId, getName, and getAge methods to retrieve and print these
values.
4. Output Example:
Your program should produce output similar to the following: (use your real
information for the name and ID)
.
5. Screenshots Required:
o Include a screenshot of your code.
o Include a screenshot of the program output after running the test
program.
Question Two
Pg. 02
Learning
Outcome(s):
Develop a
program based on
specification
using
programming
Question Two
Write a Java program to find the largest element in an array.
1. Program Requirements:
o Prompt the user to input the size of the array.
o Allow the user to input the elements of the array.
o Find and display the largest element in the array.
2. Example Output:
Below is an example of how the program should run:
language
elements
including syntax,
data types,
conditional
statement, control
structures,
procedures,
arrays, objects
and classes.
3. Screenshots Required:
o Include a screenshot of your Java code.
o Include a screenshot of the execution output showing the
program in action.
o Use deferent numbers when running your program
3 Marks
Question Three
Pg. 03
Learning
Outcome(s):
Question Three
2 Marks
Consider the foillowing code:
Develop a
program based on
specification
using
programming
language
elements
including syntax,
data types,
conditional
statement, control
structures,
procedures,
arrays, objects
and classes.
public class OverloadExample {
public int multiply(int a, int b) {
return a * b;
}
public double multiply(double a, double b) {
return a * b;
}
public static void main(String[] args) {
OverloadExample example = new
OverloadExample();
System.out.println(example.multiply(2, 3));
System.out.println(example.multiply(2.5,
3.5));
}
}
1. What happens if you try to call example.multiply(2, 3.5)?
2. Explain which method would be called and why.
3. What will be the output of the following line?
Question Three
Pg. 04
System.out.println(example.multiply(2, 3));
4. Explain why this output is produced.
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