Student.java

public class Student {
    private final String id;
    private String name;
    private int age;
    private String course;
    private double marks;

    public Student(String id, String name, int age, String course, double marks) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.course = course;
        this.marks = marks;
    }

    public String getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public String getCourse() {
        return course;
    }

    public double getMarks() {
        return marks;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public void setCourse(String course) {
        this.course = course;
    }

    public void setMarks(double marks) {
        this.marks = marks;
    }

    @Override
    public String toString() {
        return "ID: " + id + ", Name: " + name + ", Age: " + age +
                ", Course: " + course + ", Marks: " + marks;
    }
}