You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on Blackboard via the allocated folder.

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.

 

Learning Outcome(s):

 

CLO4:

 

Develop a program based on specification using programming language elements including syntax, data types, conditional statement, control structures.

 

 

2 Marks

 

Question One

Find the issues in the following Java code, then correct them.

 

public class Rectangular

 

{

 

private int length;

 

private int width;

 

public Rectangular(int length, int width)

 

{

 

this.length = length;

 

this.width = width;

 

}

 

public String area ()

 

{

 

return length * width;

 

}

 

}

 

public class RectangularTest

 

{

 

public static void main (String[] args)

 

{

 

Rectangular r1 = new Rectangular(3,5);

 

System.out.println(area());

 

}

 

}

 

2 Marks

 

Learning Outcome(s): CLO4:

 

Develop a program based on specification using programming language elements including syntax, data types, conditional statement, control structures.

 

 

Question Two

1-Create a Java class for Student with the following requirements:

 

Each student has two attributes: Name and ID.

 

Create two constructors. One constructor without parameters to initialize all the instance variables to default values, and another constructor to initialize all the attributes to specific values.

 

Add all setter and getter methods.

 

2-Create a tester class with the main method with the following requirements.

 

Create two objects from Student class. Create the first object using the default constructor and the second object must set your name and ID.

 

Print your name and ID using getter methods.

 

Sample of the output:

 

2 Marks

 

Learning Outcome(s): CLO4:

 

Develop a program based on specification using programming language elements including syntax, data types, conditional statement, control structures.

 

Question Three

Suppose you have the following 2 dimensions array:

 

int arr[][] = {

 

{ 10, 11, 12, 13, 14 },

 

{ 15, 16, 17, 18, 19 },

 

{ 20, 21, 22, 23, 24 },

 

{ 25, 26, 27, 28, 29 },

 

{ 30, 31, 32, 33, 34 }

 

};

 

With the the following rows and columns sizes:

 

static int rows= 5;

 

static int columns= 5;

 

Write a Java programs that uses takes arr[][] and reverse (mirror) all rows. For example, the first row should be as the following after you reverse it 14 13 12 11 10. A screenshot of your output should also be included in your answer and should display both the original array and the reversed array.

 

Sample output:

 

2 Marks

 

Learning Outcome(s): CLO(4):

 

Develop a program based on specification using programming language elements including syntax, data types, conditional statement, control structures.

 

Question Four

What is the output of the following Java program?

 

 

public class Exam

 

{

 

static int studyingHours = 31;

 

private String course = “OOP”;

 

public void compute(int studyingHours)

 

{

 

Exam e = new Exam();

 

this.studyingHours = 24;

 

course = “Math”;

 

System.out.println(“Exam.studyingHours: ” + Exam.studyingHours);

 

System.out.println(“e.studyingHours: ” + e.studyingHours);

 

System.out.println(“e.course: ” + e.course);

 

System.out.println(“course: ” + course);

 

}

 

public static void main(String args[])

 

{

 

Exam e = new Exam();

 

e.compute(31);

You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on Blackboard via the allocated folder.

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