//ITECCourse.java 

 package weekq1_course; import java.util.ArrayList; public class ITECCourse { // Data that an ITECCourse object needs to store  // It's often best to make instance variables private  private String name; private int code; private int maxStudents; private ArrayList students; // TODO Part 1 add a variable called classroom to store the classroom number a ITECCourse meets in  // TODO add get and set methods for the classroom variable     // Get and set methods for private variables  // Only provide if other classes will need to modify these variables!  // Common to only provide get methods to read the values, or only  // methods for a subset of all of the class variables.  public int getMaxStudents() { return maxStudents; } public void setMaxStudents(int maxStudents) { this.maxStudents = maxStudents; } public int getCode() { return code; } public void setCode(int code) { this.code = code; } public String getName() { return name; } public void setName(String name) { this.name = name; } public ArrayList getStudents() { return students; } // Notice no set method for getStudents. To modify, have to use th addStudent and removeStudent methods.    // TODO part 1 create a new constructor. It will have the same arguments  // as this constructor, plus one more: a String to set the classroom variable.  // Don't delete the current constructor.  // Is your code repetitive? You can call one constructor from another. this(arg1, arg2, arg3)  // calls another constructor for this class.   //Constructor - public  public ITECCourse(String courseName, int courseCode, int courseMaxStudents) { this.name = courseName; this.code = courseCode; this.students = new ArrayList<>(); //Set up the students list  this.maxStudents = courseMaxStudents; } // Instance methods. If other classes will need to call these for your  // ITECCourse objects, they need to be public, package-protected or protected  public void addStudent(String studentName) { //Check to see if the ITECCourse is full before adding new student  if (students.size() == maxStudents) { System.out.println("Course is full  can't add " + studentName); System.out.println("The maximum number of students is " + maxStudents); } else { students.add(studentName); } } public void removeStudent(String studentName) { if (students.contains(studentName)) { students.remove(studentName); System.out.println(studentName + " was un-enrolled from " + this.name); } else { System.out.println(studentName + " was not found in " + this.name); } } public void writeCourseInfo() { System.out.println("Course Name: " + name); System.out.println("Course Code: " + code); System.out.println("Students enrolled:"); for (String student : students) { System.out.println(student); } System.out.println("There are " + getNumberOfStudents() + " students enrolled"); System.out.println("The max number of students for this ITECCourse is " + maxStudents); //TODO print the classroom the ITECCourse meets in. If there is no classroom set, what will you print?  //TODO print the number of free spaces in the course  } public int getNumberOfStudents() { return this.students.size(); } //TODO Part 2 add a method that returns the number of free spaces in this ITECCourse.   } 

//Question_1_ITEC_Course_Manager.java 

 package weekq1_course; import java.util.ArrayList; /**   Part 1:   Modify ITECCourse. Add a variable to store the classroom that the ITECCourse meets in.  Should this variable be public, protected, or private?  The variable's name should be 'classroom'  Add get and set methods (setClassroom and getClassroom) for this variable.   Add a second ITECCourse constructor so that there are two ways to create ITECCourse objects.  The second constructor will take 4 arguments: the same 3 as the current constructor, plus a String  to specify the classroom when you create an ITECCourse object. The classroom should be the 4th argument.   Test your code by creating a ITECCourse object for this class:  Name: Info Tech Concepts, code 1100, max students 30, classroom T3050.  Enroll Miriam, and Nils, and Oprah.    Part 2:   Add a method to ITECCourse.java called freeSpace. This method will return the number of free spaces  in the class.   So if the max number of students in a class is 30, and there are 10 students enrolled,  this method will return 20.   Modify writeCourseInfo to include the classroom and the free space.  Print the classroom, if there is one. Or print a "no classroom" message if the ITECCourse does not have a classroom.    Part 3:   Modify ITECCourseManager testCourseManagerMethods() to add all of your ITECCourse objects to the  allITECCourses ArrayList. You should have 4 (or more) ITECCourse objects.   Finish the calculateTotalFree space method. It should add up all of the free space in all of the courses  in allITECCourses. It will return the total free spaces, as an integer.    Part 4:   At the end of testCourseManagerMethods(), loop over all of the ITECCourse objects and  print the name of each ITECCourse, and the number of free spaces in each ITECCourse.   */  public class Question_1_ITEC_Course_Manager { public static void main(String[] args) { Question_1_ITEC_Course_Manager manager = new Question_1_ITEC_Course_Manager(); manager.useCourseManagerMethods(); } // Global variable to store all ITECCourse objects  private ArrayList allITECCourses = new ArrayList<>(); public void useCourseManagerMethods() { // Create an ITECCourse object called maintenanceCourse  ITECCourse maintenanceCourse = new ITECCourse("Microcomputer Systems Maintenance", 1310, 20); //Add some students.  maintenanceCourse.addStudent("Anna"); maintenanceCourse.addStudent("Bill"); maintenanceCourse.addStudent("Carl"); //Carl decided to drop the class...  maintenanceCourse.removeStudent("Carl"); maintenanceCourse.writeCourseInfo(); // Can also get individual variable values with getter methods  System.out.println("Course name is + " + maintenanceCourse.getName()); System.out.println("Course code is + " + maintenanceCourse.getCode()); System.out.println("Max students in the ITECCourse is " + maintenanceCourse.getMaxStudents()); //And can set variables, if set methods are provided   //Let's increase the max number of students  maintenanceCourse.setMaxStudents(24); System.out.println("The maximum number of students is now " + maintenanceCourse.getMaxStudents()); // Another test object. This represents the Data Communications course  ITECCourse datacomCourse = new ITECCourse("Data Communications", 1424, 30); datacomCourse.addStudent("Dora"); datacomCourse.addStudent("Ed"); datacomCourse.addStudent("Flora"); datacomCourse.writeCourseInfo(); //Test the add students method with an example class  // This class has a max of 3 students  ITECCourse smallCourse = new ITECCourse("Made up name small class", 1234, 3); smallCourse.addStudent("Jake"); smallCourse.addStudent("Katherine"); smallCourse.addStudent("Liam"); //We shouldn't be able to add another student  what happens?  smallCourse.addStudent("Marigold"); // TODO Part 1 Create a new ITECCourse object with a classroom. Use your new constructor     // TODO part 3/4 Add all of the ITECCourse objects to the allITECCourses ArrayList  // Figure out the total number of free spaces in all the classes.  int totalSpacesLeft = calculateTotalFreeSpace(); System.out.println( String.format("There are %d spaces remaining in all the ITEC courses", totalSpacesLeft)); // TODO part 4 Loop over all of the ITECCourse objects and call writeCourseInfo for each    } public int calculateTotalFreeSpace() { // TODO part 3 loop over all the courses and add up all of the free spaces in all of the classes.   return 0; // TODO replace with your calculated value   } }