package week_6.q1_course; import java.util.ArrayList; /** Part 1: Modify ITECCou

Question

 package week_6.q1_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<ITECCourse> 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          }           }  

Explanation / Answer

I could not get your ITECCourse java file.

But as per my assumption I will provide the answers to your questions.

variable should be private .

Declare as follows

private String classroom;

//getters and setters

public String getClassroom() {
       return classroom;
   }

   public void setClassroom(String classroom) {
        this.classroom = classroom;
   }

//Include this attribute in constructor also.

    //constructor
   public ITECCourse(String name, int code, int maxStudents, String classroom) {
       super();
       this.name = name;
       this.code = code;
       this.maxStudents = maxStudents;
       this.classroom = classroom;
   }

// freespace method

   public int freeSpace() {
       return maxStudents - enrolledStudents;
   }

//writeCourseInfo
   public void writeCourseInfo()
   {
       System.out.println(this.toString());
   }
   @Override
   public String toString() {
       return "ITCCourse [name=" + name + ", code=" + code + ", maxStudents=" + maxStudents + ", enrolledStudents="
               + enrolledStudents + ", classroom=" + classroom + "]";
   }

public int calculateTotalFreeSpace() {
  
        // TODO part 3 loop over all the courses and add up all of the free spaces in all of the classes.
        int freespace=0;
       for (ITECCourse itecCourse : allITECCourses) {
           freespace=freespace+itecCourse.freeSpace();
       }
        return freespace; // TODO replace with your calculated value
  
    }

// TODO part 4 Loop over all of the ITECCourse objects and call writeCourseInfo for each

for (ITECCourse itecCourse : allITECCourses) {
           itecCourse.writeCourseInfo();
       }

//Please note :

to add course to list use the arraylist method as .

allITECCourses.add(maintenanceCourse);

//Thanks:

if you are not satisfy with this answer please provide ITECCourse java file .

I will do exactly what you wanted.

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