I have to implement the code with teacher comments

Nov 10th, 2014
HelloWorld
Category:
Programming
Price: $10 USD

Question description

public class CourseRoster {

//Do NOT add or remove any of these data members

private String courseName;

private String instructorName;

private Student[] roster;

public CourseRoster(){

//Constructs a CourseRoster

// DO NOT modify this method

courseName = "CMSC 131";

instructorName = "Tom R";

roster = null;

}

public void addStudent(Student newMember){

//adds a new item always to the end of the list

// This one is already implemented for you

//Do NOT modify this method

if (roster == null){

roster = new Student[1];

roster[0] = new Student(newMember);

}else{

Student[] tempStudentArr = 

new Student[roster.length+1];

for (int index = 0; index < roster.length; index++){

tempStudentArr[index] = roster[index];

}

tempStudentArr[roster.length] = new Student(newMember);

roster = tempStudentArr;

}

}

public String getNames(){

// returns the list of student names concatenated together

// it will be used in the junit tests to determine if students

// were added in the correct order

// This one is already implemented for you

// Do NOT modify this method

if (roster == null){

return null;

}else{

String list="";

for (int index = 0; index < roster.length;index++){

list+=roster[index].getName();

}

return list;

}

}

public int getSize(){

//returns the current size of the roster array

//This one is already implemented for you

// Do NOT modify this method

if (roster == null){

return 0;

}else{

return roster.length;

}

}

public int findIndex(String name){

// returns the index for the first occurrence of a Student

// in the roster whose name matches that value of the parameter

// or returns -1 if that name is not in the list

return -1;

}

public int getValues(){

//returns the sum of all values of the individual

// items in the current array based on the 

// object's getValue method

// if the list is empty, the value 0 is returned

return -1;

}

public int giveMoreAid(){

// gives a raise in financial aid to each member of the list

// each according to its giveMoreAid method

// returns the sum of the return values

// of all of the calls to the giveMoreAid methods

// if the list is empty, the value 0 is returned

return -1;

}

public boolean removeStudent(String name){

// Removes the first student whose name matches

// the value of the parameter and returns true- if a student 

// with that name appears in the roster.

// Returns false - if that name does not appear

// in the current roster and does not remove anything.

// If a student is removed from the roster,  the roster array

// must remain the exact size needed to hold the number 

// of Students currently in the class (the size of the array itself

// must be one smaller if there is one fewer elements in the list.

// If the one being removed is the only student in the list, the

// roster should become null (as it was set in the constructor).

return false;

}

}


Tutor Answer

(Top Tutor) Daniel C.
(997)
School: Purdue University
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Five Star Tutor
Dec 3rd, 2016
" Outstanding Job!!!! "
kpcutie
Nov 20th, 2016
" Excellent job "
Joemoe
Nov 11th, 2016
" <3 it, thanks for saving me time. "
Hemapathy
Nov 6th, 2016
" all I can say is wow very fast work, great work thanks "
pmallory
Oct 28th, 2016
" Totally impressed with results!! :-) "
kevin12622
Oct 15th, 2016
" Goes above and beyond expectations ! "
kiln82
Oct 6th, 2016
" awesome work thanks "
likeplum4
Sep 22nd, 2016
" Excellent work as usual "
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