Course.java
import java.io.Serializable;
/**
* Represents a course that might be taken by a student.
*
*/
public class Course implements Serializable
{
private String prefix;
private int number;
private String title;
private String grade;
/**
* Constructs the course with the specified information.
*
* @param prefix the prefix of the course designation
* @param number the number of the course designation
* @param title the title of the course
* @param grade the grade received for the course
*/
public Course(String prefix, int number, String title, String grade)
{
this.prefix = prefix;
this.number = number;
this.title = title;
if (grade == null)
this.grade = "";
else
this.grade = grade;
}
/**
* Constructs the course with the specified information, with no grade
* established.
*
* @param prefix the prefix of the course designation
* @param number the number of the course designation
* @param title the title of the course
*/
public Course(String prefix, int number, String title)
{
this(prefix, number, title, "");
}
/**
* Returns the prefix of the course designation.
*
* @return the prefix of the course designation
*/
public String getPrefix()
{
return prefix;
}
/**
* Returns the number of the course designation.
*
* @return the number of the course designation
*/
public int getNumber()
{
return number;
}
/**
* Returns the title of this course.
*
* @return the prefix of the course
*/
public String getTitle()
{
return title;
}
/**
* Returns the grade for this course.
*
* @return the grade for this course
*/
public String getGrade()
{
return grade;
}
/**
* Sets the grade for this course to the one specified.
*
* @param grade the new grade for the course
*/
public void setGrade(String grade)
{
this.grade = grade;
}
/**
* Returns true if this course has been taken (if a grade has been received).
*
* @return true if this course has been taken and false otherwise
*/
public boolean taken()
{
return !grade.equals("");
}
/**
* Determines if this course is equal to the one specified, based on the
* course designation (prefix and number).
*
* @return true if this course is equal to the parameter
*/
public boolean equals(Object other)
{
boolean result = false;
if (other instanceof Course)
{
Course otherCourse = (Course) other;
if (prefix.equals(otherCourse.getPrefix()) &&
number == otherCourse.getNumber())
result = true;
}
return result;
}
/**
* Creates and returns a string representation of this course.
*
* @return a string representation of the course
*/
public String toString()
{
String result = prefix + " " + number + ": " + title;
if (!grade.equals(""))
result += " [" + grade + "]";
return result;
}
}
Homework Answers
Below is your code: -
CourseIterableMain.java
public class CourseIterableMain {
/**
* @param args
* the command line arguments
*/
public static void main(String[] args) {
BufferedReader br = null;
String line = "";
CourseIterator clist = new CourseIterator();
try {
br = new BufferedReader(new FileReader(new File("CourseForProgram.txt")));
while ((line = br.readLine()) != null) {
// System.out.println(line);
String temp[] = line.split(":");
String courseCodeandPrefix[] = temp[0].split(" ");
String descAngGrade[] = temp[1].split(" ");
String coursePrefix = courseCodeandPrefix[0];
int courseCode = Integer.parseInt(courseCodeandPrefix[1]);
String courseDesc = descAngGrade[0];
String grade = "";
try {
grade = descAngGrade[1].replace("[", "").replace("]", "");
} catch (ArrayIndexOutOfBoundsException ex) {
grade = "";
}
// System.out.println("Grade:" + grade);
Course c = new Course(coursePrefix, courseCode, courseDesc, grade);
clist.addtoCourseList(c);
}
// System.out.print(Arrays.asList(clist.courseArray));
Iterator it = clist.iterator();
while (it.hasNext()) {
Course nextCourse = (Course) it.next();
// System.out.println("nextCourse:" + nextCourse);
if (nextCourse != null && (nextCourse.getGrade() == null || nextCourse.getGrade().equals("")
|| nextCourse.getGrade().equals("null"))) {
it.remove();
}
}
Iterator it2 = clist.iterator();
while (it2.hasNext()) {
Course nextCourse = (Course) it2.next();
if (nextCourse != null) {
System.out.println(nextCourse);
}
}
} catch (FileNotFoundException ex) {
Logger.getLogger(CourseIterableMain.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(CourseIterableMain.class.getName()).log(Level.SEVERE, null, ex);
} finally {
try {
br.close();
} catch (IOException ex) {
Logger.getLogger(CourseIterableMain.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
Course.java
/**
*
* Represents a course that might be taken by a student.
*
*
*
*/
public class Course implements Serializable
{
private String prefix;
private int number;
private String title;
private String grade;
/**
*
* Constructs the course with the specified information.
*
*
*
* @param prefix
* the prefix of the course designation
*
* @param number
* the number of the course designation
*
* @param title
* the title of the course
*
* @param grade
* the grade received for the course
*
*/
public Course(String prefix, int number, String title, String grade)
{
this.prefix = prefix;
this.number = number;
this.title = title;
if (grade == null)
this.grade = "";
else
this.grade = grade;
}
/**
*
* Constructs the course with the specified information, with no grade
*
* established.
*
*
*
* @param prefix
* the prefix of the course designation
*
* @param number
* the number of the course designation
*
* @param title
* the title of the course
*
*/
public Course(String prefix, int number, String title)
{
this(prefix, number, title, "");
}
/**
*
* Returns the prefix of the course designation.
*
*
*
* @return the prefix of the course designation
*
*/
public String getPrefix()
{
return prefix;
}
/**
*
* Returns the number of the course designation.
*
*
*
* @return the number of the course designation
*
*/
public int getNumber()
{
return number;
}
/**
*
* Returns the title of this course.
*
*
*
* @return the prefix of the course
*
*/
public String getTitle()
{
return title;
}
/**
*
* Returns the grade for this course.
*
*
*
* @return the grade for this course
*
*/
public String getGrade()
{
return grade;
}
/**
*
* Sets the grade for this course to the one specified.
*
*
*
* @param grade
* the new grade for the course
*
*/
public void setGrade(String grade)
{
this.grade = grade;
}
/**
*
* Returns true if this course has been taken (if a grade has been
* received).
*
*
*
* @return true if this course has been taken and false otherwise
*
*/
public boolean taken()
{
return !grade.equals("");
}
/**
*
* Determines if this course is equal to the one specified, based on the
*
* course designation (prefix and number).
*
*
*
* @return true if this course is equal to the parameter
*
*/
public boolean equals(Object other)
{
boolean result = false;
if (other instanceof Course)
{
Course otherCourse = (Course) other;
if (prefix.equals(otherCourse.getPrefix()) &&
number == otherCourse.getNumber())
result = true;
}
return result;
}
/**
*
* Creates and returns a string representation of this course.
*
*
*
* @return a string representation of the course
*
*/
public String toString()
{
String result = prefix + " " + number + ": " + title;
if (!grade.equals(""))
result += " [" + grade + "]";
return result;
}
}
CourseIterator.java
public class CourseIterator implements Iterable<Course> {
Course[] courseArray = new Course[16]; // Initial Size of 16
int currIndex = 0;
public boolean addtoCourseList(Course c) {
courseArray[currIndex++] = c;
return true;
}
public boolean findCourse(Course c) {
int i = 0;
boolean itemFound = false;
while (i < courseArray.length) {
if (courseArray[i].equals(c)) {
itemFound = true;
break;
}
}
return itemFound;
}
@Override
public Iterator<Course> iterator() {
return new CourseListIterator();
}
private class CourseListIterator implements Iterator<Course> {
int iteratingIndex = 0;
@Override
public boolean hasNext() {
if (iteratingIndex < courseArray.length) {
return true;
} else {
return false;
}
}
@Override
public Course next() {
return courseArray[iteratingIndex++];
}
@Override
public void remove() {
courseArray[--iteratingIndex] = null;
}
}
}
Add Answer to:
Course.java
import java.io.Serializable;
/**
* Represents a course that might be taken by a student.
*...
Course,java import java.util.ArrayList; import java.util.Arrays; /* * To change this license header, choose License Headers in...
Course,java
import java.util.ArrayList;
import java.util.Arrays;
/*
* To change this license header, choose License Headers in
Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author fenghui
*/
public class Course {
private String cName;
private ArrayList<Subject>
cores;
private ArrayList<Major>
majors;
private ArrayList<Subject>
electives;
private int cCredit;
public Course(String n, int cc){
cName = n;
cCredit =
cc;
cores = new
ArrayList<Subject>(0);
majors =...
Write a class called Course_xxx that represents a course taken at a school. Represent each student...
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Course,java
import java.util.ArrayList;
import java.util.Arrays;
/*
* To change this license header, choose License Headers in
Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author fenghui
*/
public class Course {
private String cName;
private ArrayList<Subject>
cores;
private ArrayList<Major>
majors;
private ArrayList<Subject>
electives;
private int cCredit;
public Course(String n, int cc){
cName = n;
cCredit =
cc;
cores = new
ArrayList<Subject>(0);
majors =...
The following is for java programming. the classes
money date and array list are so I are are pre made to help with
the coding so you can resuse them where applicable
Question 3. (10 marks) Here are three incomplete Java classes that model students, staff, and faculty members at a university class Student [ private String lastName; private String firstName; private Address address; private String degreeProgram; private IDNumber studentNumber; // Constructors and methods omitted. class Staff private String lastName;...
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