Each Student object consists of name, id$,$ cgpa and a Registration object. This Student

class uses the Registration object as one of its instance variables to keep track of the

information related to registration of a student. When a student adds or drops a course, his$/$her

Registration object gets updated.

public class Student $\{$

private String name;

private int id;

private double cgpa;

private Registration reg;

public Student$($String name, int id$,$ double cgpa$)\{$

this.name $=$ name;

this.id $=$ id;

this.cgpa $=$ cgpa;

$\}$

$//$ getter and setter methods

public void makeNewRegistration$()\{$

reg $=$ new Registration$()$;

$\}$

public void addCourse$($Course course$)\{$

$\}$

public void dropCourse$($Course course$)\{$

$\}$

Question: Write down the coding for dropCourse and addCourse with necessary

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