Add Exercise 6

Author: pasindulakshan

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 7/InheritanceDemo.java

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+public class InheritanceDemo {
+ public static void main(String[] args) {
+ // Create an object of Person class
+ PartTimeStudent ps1 = new PartTimeStudent("Lakshan", "Matara", "IT20123456", 50);
+
+ // Call showDetail() method
+ ps1.showDetail();
+ }
+ 
+}

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 7/PartTimeStudent.java

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+public class PartTimeStudent extends Student{
+ private int noOfHours;
+
+ //constructor
+ public PartTimeStudent(String name, String address, String studentId, int noOfHours){
+ super(name, address, studentId);
+ this.noOfHours = noOfHours;
+ }
+ //mutator methods
+ public void setNoOfHours(int noOfHours){
+ this.noOfHours = noOfHours;
+ }
+ //accessor methods
+ public int getNoOfHours(){
+ return this.noOfHours;
+ }
+ //showDetail method
+ public void showDetail(){
+ System.out.println("Part-Time Student");
+ super.showDetail();
+ System.out.println("No. of Working Hours: " + this.noOfHours);
+ }
+}

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 7/Person.java

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+public class Person {
+ private String name;
+ private String address;
+
+ //default constructor
+ public Person() {
+ this.name = "";
+ this.address = "";
+ }
+ //constructor with parameters
+ public Person(String name, String address) {
+ this.name = name;
+ this.address = address;
+ }
+ //Mutator methods
+ public void setName(String name) {
+ this.name = name;
+ }
+ public void setAddress(String address) {
+ this.address = address;
+ }
+ //Accessor methods
+ public String getName() {
+ return this.name;
+ }
+ public String getAddress() {
+ return this.address;
+ }
+ //showDetails method
+ public void showDetail() {
+ System.out.println("Name: " + name);
+ System.out.println("Address: " + address);
+ }
+}

Lab Sheets/Lab Sheet 03/Lakshan/Exercise 7/Student.java

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+public class Student extends Person {
+ private String studentId;
+ //constructor
+ public Student(String name, String adress, String studentId) {
+ super(name, adress);
+ this.studentId = studentId;
+ }
+ //Mutator methods
+ public void setStudentId(String studentId) {
+ this.studentId = studentId;
+ }
+ //Accessor methods
+ public String getStudentId() {
+ return studentId;
+ }
+ //showDetail method
+ public void showDetail() {
+ System.out.println("Student Details");
+ super.showDetail();
+ System.out.println("Student ID: " + studentId);
+ }
+}