Student.java

// blue print for storing student data

public class Student {                 // private variables (for data hiding)
    private String name;
    private int rollNumber;
    private double marks;

    public Student(String name, int rollNumber, double marks) { // constructor to initialize variables
        this.name = name;
        this.rollNumber = rollNumber;
        this.marks = marks;
    }

    // Getter methods to access private variables
    public String getName() {
        return name;
    }

    public int getollNumber() {
        return rollNumber;
    }

    public double getMarks() {
        return marks;
    }

    @Override // return student details in string format
    public String toString() {
        return rollNumber + " " + name + " " + marks;
    }

}