import java.io.Serializable;
import java.util.*;

public class Group implements Serializable{
  private final int groupNum;
  private final String groupName;

  public Group(int groupNum, String gName) {
    this.groupNum = groupNum;
    this.students = new HashMap<Student, Boolean>();
    this.groupName = gName;
  }


  public String getGroupName() {

    return groupName;
  }

  public int getGroupNum() { return groupNum; }

  public HashMap<Student, Boolean> getStudents() {
    return students;
  }

  public void setStudents(HashMap<Student, Boolean> students) {
    this.students = students;
  }

  @Override
  public String toString() {
    return "Group{" +
            "groupNum=" + groupNum +
            ", groupName='" + groupName + '\'' +
            ", students=" + students.toString() +
            '}';
  }

  private HashMap<Student, Boolean> students = new HashMap<>();
  public void addStudent(Student student){
    students.put(student, false);
  }
  public void removeStudent(Student student){
    students.remove(student);
  }
}