/**
 * Teacher t1 = new Teacher("Sarah", "Clark", 35, "female", "Hello, class!");
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Teacher
{
    private String firstName;
    private String lastName;
    private String age;
    private String gender;
    private String greeting;
    private Course course;
    private Student aStudent;

    public Teacher(String firstName, String lastName,Course course,Student stu)
    {
        this.firstName = firstName;
        this.lastName = lastName;
        this.course = course;
        aStudent = stu;
    }

    // draw teacher(s)
    public void draw()
    {
        StdDraw.picture(-1,-1.5,"school_teachers.png",2,1);
    }
    
    // getter/accessor methods
    public String getName()
    {
        return firstName+ " " + lastName;
    }

    public String getAge()
    {
        return age;
    }    

    public String getGender()
    {
        return gender;
    }

    public String getGreeting()
    {
        return greeting;
    }

    public String toString()
    {
        String output = "";
        output += "Teacher name: " + firstName + " " + lastName + "\nCourse Taught: " + course + "\nStudent: " + aStudent ;

        return output;
    }
}

/**
 * Cistomized driver to test all the different parts of my class MySchoolTest
 *
 * @RA & mrs.e
 * @1.8 3/13/18 & 5/10/19
 */
public class MySchoolTest
{
    public static void main(String [] args)
    {
        //StdDraw.setXscale(-2.03,2.03);
        //StdDraw.setYscale(-2.03,2.03);
        StdDraw.setXscale(-2,2);
        StdDraw.setYscale(-2,2);
        
        //create an object of student
        //then create 3 objects of course
        //afterwards we add the 3 objects of course to the student 
        Student konoa = new Student("Konoa", "Smith", "15", "female", "1234");  
        konoa.draw();

        Course c1 = new Course("Biology", "5", "102");
        Course c2 = new Course("precalculus", "4", "136");
        Course c3 = new Course("APUSH", "7", "117");

        // create an object of Teacher
        Teacher mrBill = new Teacher("Jasmine", "Flores", "28", "MYOB", "Namaste", c1);
        // print a teacher
        System.out.println("\n" + mrBill);
        mrBill.draw();

        // print a course information
        System.out.println("Print a course ");
        System.out.println(c1);

        // add all courses to an array
        Course [] courses = { c1,c2,c3};

        // assign all courses to a student
        konoa.setCourses(courses);
        c1.draw();
        //print a student info and courses
        System.out.println("\n" + konoa);
        
        /**
        *  I omitted the school object for easier understanding 
        *  of few interacting ADT objects
        */
    }

}

/* 
 * Teacher name: Jasmine Flores
 * Course Taught: 
 * Class name: Biology
 * Room Number: 102
 * Period:  5
 * 
 * Print a course 
 * Class name: Biology
 * Room Number: 102
 * Period:  5

 * Student name: Konoa Smith
 * Courses: 

 * Class name: Biology
 * Room Number: 102
 * Period:  5

 * Class name: precalculus
 * Room Number: 136
 * Period:  4

 * Class name: APUSH
 * Room Number: 117
 * Period:  7

 * 
 */

Animations using java

If you are still trying to fit all the piece together, look again at the transform method from PhotoMagic.java:

The transform() method
Takes a Picture and an LFSR as arguments and returns a new Picture object that is the result of transforming the argument picture using the LFSR as follows:

1. For each pixel (col, row), in column-major order—(0, 0), (0, 1), (0, 2), … —extract the red, green, and blue components of the color (each component is an integer between 0 and 255).
2. Then, xor the red component with a newly-generated 8-bit integer.
3. Do the same for the green (using another new 8-bit integer) and, finally, the blue.
4. Create a new Color object using the result of the xor operations, and set the pixel in the new picture to that color.