Add a bunch of code

Signed-off-by: Carlos Maiolino <[email protected]>

4 files changed, 298 insertions, 0 deletions

diff --git a/CPP/Basics/Ex2/CodeDemo.cpp b/CPP/Basics/Ex2/CodeDemo.cpp
new file mode 100644
index 0000000..0afcd7a
--- /dev/null
+++ b/CPP/Basics/Ex2/CodeDemo.cpp
@@ -0,0 +1,43 @@
+// Learning C++ 

+// Challenge 04_05

+// Calculate a GPA, by Eduardo Corpeño 

+

+#include <iostream>

+#include <vector>

+#include "records.h"

+

+using namespace std;

+

+void init_students();

+

+StudentRecords SR;

+int id;

+

+int main()

+{

+	init_students();

+

+	cout << "Enter a student ID: ";

+	cin >> id;

+

+	SR.report_card(id);

+	return 0;

+}

+

+void init_students()

+{

+	SR.add_student(1,"George P. Burdell");

+	SR.add_student(2,"Nancy Rhodes");

+

+	SR.add_course(1,"Algebra",5);

+	SR.add_course(2,"Physics",4);

+	SR.add_course(3,"English",3);

+	SR.add_course(4,"Economics",4);

+

+	SR.add_grade(1,1,'B');

+	SR.add_grade(1,2,'A');

+	SR.add_grade(1,3,'C');

+	SR.add_grade(2,1,'A');

+	SR.add_grade(2,2,'A');

+	SR.add_grade(2,4,'B');

+}

diff --git a/CPP/Basics/Ex2/Makefile b/CPP/Basics/Ex2/Makefile
new file mode 100644
index 0000000..93d17b2
--- /dev/null
+++ b/CPP/Basics/Ex2/Makefile
@@ -0,0 +1,4 @@
+all:
+	gcc -o gpa CodeDemo.cpp records.cpp -lstdc++
+clean:
+	rm gpa
diff --git a/CPP/Basics/Ex2/records.cpp b/CPP/Basics/Ex2/records.cpp
new file mode 100644
index 0000000..530366a
--- /dev/null
+++ b/CPP/Basics/Ex2/records.cpp
@@ -0,0 +1,188 @@
+#include <iostream>

+#include "records.h"

+

+using namespace std;

+

+Student::Student(int the_id, string the_name){

+	id = the_id;

+	name = the_name;

+}

+int Student::get_id(){

+	return id;

+}

+string Student::get_name(){

+	return name;

+}

+

+Course::Course(int the_id, string the_name, unsigned char the_credits){

+	id = the_id;

+	name = the_name;

+	credits = the_credits;

+}

+int Course::get_id(){

+	return id;

+}

+string Course::get_name(){

+	return name;

+}

+int Course::get_credits(){

+	return credits;

+}

+

+

+Grade::Grade(int sid, int cid, char grd){

+	student_id = sid;

+	course_id = cid;

+	grade = grd;

+}

+int Grade::get_student_id(){

+	return student_id;

+}

+int Grade::get_course_id(){

+	return course_id;

+}

+char Grade::get_grade(){

+	return grade;

+}

+

+/* StudentRecords methods */

+

+void StudentRecords::add_student(int sid, string sname)

+{

+	students.push_back(Student(sid, sname));

+}

+

+void StudentRecords::add_course(int cid, string cname,

+				unsigned char ccredits)

+{

+	courses.push_back(Course(cid, cname, ccredits));

+}

+

+void StudentRecords::add_grade(int sid, int cid, char grade)

+{

+	grades.push_back(Grade(sid, cid, grade));

+}

+

+float StudentRecords::get_num_grade(char letter)

+{

+	float cur_grade;

+	switch (letter) {

+		case 'A':

+			cur_grade = 4.0f;

+			break;

+		case 'B':

+			cur_grade = 3.0f;

+			break;

+		case 'C':

+			cur_grade = 2.0f;

+			break;

+		case 'D':

+			cur_grade = 1.0f;

+			break;

+		case 'F':

+			cur_grade = 0.0f;

+			break;

+		default:

+			cur_grade = -1;

+			break;

+	}

+

+	return cur_grade;

+}

+

+std::string StudentRecords::get_student_name(int sid)

+{

+	int i = 0;

+	while (i < students.size() && students[i].get_id() != sid)

+		i++;

+

+	return students[i].get_name();

+}

+

+unsigned char StudentRecords::get_course_credits(int cid)

+{

+	unsigned char creds;

+	for (Course& c_iter : courses)

+		if (c_iter.get_id() == cid) {

+			creds = c_iter.get_credits();

+			break;

+		}

+

+	return creds;

+}

+

+float StudentRecords::get_GPA(int sid)

+{

+	float points = 0.0f;

+	float credits = 0.0f;

+	unsigned char cur_creds;

+

+	for (Grade& g_iter : grades) {

+		if (g_iter.get_student_id() != sid)

+			continue;

+

+		cur_creds = get_course_credits(g_iter.get_course_id());

+		points += get_num_grade(g_iter.get_grade()) * cur_creds;

+		credits += cur_creds;

+	}

+

+	return points / credits;

+}

+

+void StudentRecords::report_card(int sid)

+{

+	// print a report card on the screen

+	// name course letter grades and GPA.

+	std::cout << "REPORT CARD:" << std::endl;

+

+	std::cout << "Student name: " << get_student_name(sid) << std::endl;

+

+	std::cout << "Courses enrolled  |  Grade" << std::endl;

+

+	for (Grade& sgrade : grades ) {

+		if (sgrade.get_student_id() != sid)

+			continue;

+

+		for (Course& scourse : courses)

+			if (scourse.get_id() == sgrade.get_course_id())

+				std::cout << "	" <<

+				scourse.get_name() << ": " <<

+					sgrade.get_grade() << std::endl;

+	}

+

+	std::cout << std::endl;

+	std::cout << "Student GPA: " << get_GPA(sid) << std::endl;

+}

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diff --git a/CPP/Basics/Ex2/records.h b/CPP/Basics/Ex2/records.h
new file mode 100644
index 0000000..c0e92c6
--- /dev/null
+++ b/CPP/Basics/Ex2/records.h
@@ -0,0 +1,63 @@
+#ifndef RECORDS_H

+#define RECORDS_H

+

+#include <vector>

+#include <string>

+

+class Student{

+private:

+	int id;

+	std::string name;

+

+public:

+	Student(int the_id, std::string the_name);

+	int get_id();

+	std::string get_name();

+};

+

+class Course{

+private:

+	int id;

+	std::string name;

+	unsigned char credits;

+

+public:

+	Course(int the_id, std::string the_name, unsigned char the_credits);

+	int get_id();

+	std::string get_name();

+	int get_credits();

+};

+

+class Grade{

+private:

+	int student_id;

+	int course_id;

+	char grade;

+

+public:

+	Grade(int sid, int cid, char grd);

+	int get_student_id();

+	int get_course_id();

+	char get_grade();

+};

+

+class StudentRecords {

+private:

+	std::vector<Student> students;

+	std::vector<Course> courses;

+	std::vector<Grade> grades;

+

+	float get_num_grade(char);

+

+public:

+	void add_student(int, std::string);

+	void add_course(int, std::string, unsigned char);

+	void add_grade(int, int, char);

+

+	std::string get_student_name(int);

+	unsigned char get_course_credits(int);

+	float get_GPA(int);

+	void report_card(int);

+};

+

+#endif /* RECORDS_H */