code skeleton - Ex-W6

Ex-w6/ums.java

+package org.example;
+
+// Abstract superclass
+abstract class Person {
+    protected String name;
+    protected int age;
+
+    public Person(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public void greet() {
+        System.out.println("Hello, I am a member of the university.");
+    }
+
+    public abstract void displayDetails();
+}
+
+// Student subclass
+class Student extends Person {
+    protected String studentID;
+
+    public Student(String name, int age, String studentID) {
+        super(name, age);
+        this.studentID = studentID;
+    }
+
+    @Override
+    public void displayDetails() {
+        System.out.println("Student Details: Name: " + name + ", Age: " + age + ", ID: " + studentID);
+    }
+
+    public void study() {
+        System.out.println("Student is studying.");
+    }
+}
+
+// Professor subclass
+class Professor extends Person {
+    protected String specialization;
+
+    public Professor(String name, int age, String specialization) {
+        super(name, age);
+        this.specialization = specialization;
+    }
+
+    @Override
+    public void displayDetails() {
+        System.out.println("Professor Details: Name: " + name + ", Age: " + age + ", Specialization: " + specialization);
+    }
+
+    public void teach() {
+        System.out.println("Professor is teaching.");
+    }
+}
+
+// Staff subclass
+class Staff extends Person {
+    protected String department;
+
+    public Staff(String name, int age, String department) {
+        super(name, age);
+        this.department = department;
+    }
+
+    @Override
+    public void displayDetails() {
+        System.out.println("Staff Details: Name: " + name + ", Age: " + age + ", Department: " + department);
+    }
+
+    public void work() {
+        System.out.println("Staff member is working.");
+    }
+}
+
+// Main class
+public class ums {
+    public static void main(String[] args) {
+        Student student = new Student("Alice", 20, "S12345");
+        Professor professor = new Professor("Dr. Smith", 45, "Computer Science");
+        Staff staff = new Staff("Mr. Brown", 35, "Administration");
+
+        student.greet();
+        student.displayDetails();
+        student.study();
+        System.out.println();
+
+        professor.greet();
+        professor.displayDetails();
+        professor.teach();
+        System.out.println();
+
+        staff.greet();
+        staff.displayDetails();
+        staff.work();
+    }
+}
+