Interface & Inheritance

package taoshiflex.lab7;

public class Student {
    
    int age;

    // Constructor
    public Student(int age) {
        this.age = age;
    }

    // Display method
    void display() {
        System.out.println("Student Age: " + age);
    }
}



package taoshiflex.lab7;

// TeachingAssistant class inherits from Student and implements Employee
class TeachingAssistant extends Student implements Employee {
    int id;
    String name;
    int salary;

    // Constructor
    public TeachingAssistant(int age, int id, String name, int salary) {
        super(age); // Call to Student constructor
        this.id = id;
        this.name = name;
        this.salary = salary;
    }

    @Override
    public void display() {
        // Override and provide implementation for both Student and Employee details
        System.out.println("Teaching Assistant Details:");
        System.out.println("Age: " + age);
        System.out.println("ID: " + id);
        System.out.println("Name: " + name);
        System.out.println("Salary: " + salary);
    }
}


package taoshiflex.lab7;

// 1. Interface Employee
interface Employee {
    int designation = 0; // Default variable (implicitly public static final)

    void display(); // Abstract method
}


package taoshiflex.lab7;

public class Lab7 {

    public static void main(String[] args) {
        // Create a TeachingAssistant object
        TeachingAssistant ta = new TeachingAssistant(20, 101, "Taoshif", 400000);

        // Call display method
        ta.display();
    }
}