Monthly Archives: November 2014

Class Roster Array Version [Java] Assignment

Class Roster: This class will implement the functionality of all roster for school. It will , in essence, manage an Array of Student objects. Each roster will store a default of 10 Students

  • “global” Instance Variables
    • private Student myStudents   : an array storing Student Objects
    • private String className  (a name to represent a given roster like “Ap CS”)
    • public int period  //during which period of the day does this roster meet
  • a default constructor should initialize the Array to store 20 strings
    a single parameter constructor that takes an Array <String>
    Both constructors should initialize the instance variables
  • Methods
    • Accessors
      • private int indexOf(Student st) //@returns index of Student St or -1
      • public boolean containsStudent(Student studentName )/ /@returns true if studentName is in roster .
      • public boolean equals(ClassRoster other)  //@ returns whether or not rosters are equal. Rosters are equal if identical students are in identical order in the lists
    • Mutators:
boolean addStudent( Student st ) ;//adds the student to the Roster

public void addStudent(String studentName, int age) ;// adds student name and age to end of roster

. Hint: Make user of the containsStudent() method
public boolean removeStudent(int ssnId ) // removes student from roster based on id. Make sure that you maintain the integrity of the parallel ArrayLists.

public boolean removeStudent(String name) //removes student based on name. Make sure that you maintain the integrity of the parallel ArrayLists.

public  boolean removeStudent( Student st) //removes student st. Make sure that you maintain the integrity of the parallel ArrayLists.

Student Runner Part 2 

public class StudentsRunner2{

public static void main(String[] args){
//insert the line of code needed to create the Student object aStudent;
String teacher;
for (int i =0 ;i <  5; i++)
  {
   teacher= inputString("Enter a teacher");
   aStudent.addTeacher(teacher);
  }
}


}

1) Construct the Java statement to create the Student  object called aStudent  in the

StudentsRunner

 

2)

Back to the Student Class