Week 3:

Assignment - Coding in C++

LICENSE

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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,13 @@
+# C++ Programming I - Spring 2020 (2020SP)
+ 
+This course will teach you programming concepts using a major industry programming language, C++. We will cover the history of programming languages, the essentials of the C++ programming language, and how to write effective and efficient programs to solve a variety of real-world problems.
+
+This graphic is the standard symbol for the C++ programming language. It captures the evolution of programming languages, in that C++ is an extension of the C language. The “++” is an essential operator in both languages, the post-increment operator. The syntax indicates use the current value of ‘C’ and then add on to it. That is the exact design philosophy of the C++
+
+### Champlain College 
+- [SDEV-240-81A](https://classlist.champlain.edu/show/course/number/SDEV_240) programming language.
+
+### License & Copyright
+- Written by [Llewellyn van der Merwe](https://github.com/Llewellynvdm), April 2020
+- Copyright (C) 2020. All Rights Reserved
+- License [GNU/GPL Version 2 or later](http://www.gnu.org/licenses/gpl-2.0.html)

week-03/.gitignore

@@ -0,0 +1,2 @@
+cmake-build-debug
+.idea

week-03/CMakeLists.txt

@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.16)
+project(Week3)
+
+set(CMAKE_CXX_STANDARD 14)
+
+# uncomment the one we are working on
+add_executable(Week3
+#       bmi.cpp
+#       findErrors.cpp
+       icecream.cpp
+#       table.cpp
+        )

week-03/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+
+  The licenses for most software and other practical works are designed
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+
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+                     END OF TERMS AND CONDITIONS
+
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+
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+
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+if any, to sign a "copyright disclaimer" for the program, if necessary.
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+<https://www.gnu.org/licenses/>.
+
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+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
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+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

week-03/bmi.cpp

@@ -0,0 +1,48 @@
+// To calculate your body mas index
+
+#include <iostream>
+#include <math.h>
+using namespace std;
+
+// little rounding function https://stackoverflow.com/a/50404037/1429677
+double round(long double number, int precision) {
+    int decimals = std::pow(10, precision);
+    return (std::round(number * decimals)) / decimals;
+}
+
+int main()
+{
+    // declare the weight to be integers
+    int weight;
+    // declare the height to be floats
+    float height;
+    // get the weight
+    while (true)
+    {
+        cout << "Give us your weight (in kg): ";
+        cin >> weight;
+        if(cin.fail()) {
+            cin.clear(); cin.ignore();
+            cout << "\nMust be a integer number in kilogram like 65\n" << endl;
+        } else break;
+    }
+    // get the height
+    while (true)
+    {
+        cout << "Give us the your height (in meter): ";
+        cin >> height;
+        if(cin.fail()) {
+            cin.clear(); cin.ignore();
+            cout << "\nMust be a float number in meters like 1.6\n" << endl;
+        } else break;
+    }
+    // calculate the bmi'
+    float bmi = round (weight / pow(height, 2.0), 2);
+    // show the result
+    cout << "\n=========================" << endl;
+    cout << " Your Body Mass Index is" << endl;
+    cout << "     " << bmi << " kg.m²" << endl;
+    cout << "=========================" << endl;
+
+    return 0;
+}

week-03/findErrors.cpp

@@ -0,0 +1,24 @@
+// Lab 3 findErrors.cpp
+// This program contains many syntax errors and will not compile.
+// Fix the errors so that it correctly finds the average of the
+// two integers the user enters.
+// Llewellyn van der Merwe
+
+#include <iostream>
+using namespace std;
+
+int main() {
+    int num1, num2;
+    double average;
+
+    // Input 2 integers
+    cout << "Enter two integers separated by one or more spaces: ";
+    cin >> num1 >> num2;
+
+    // Find and display their average
+    average = (num1 + num2) / 2;
+
+    cout << "\nThe average of these 2 numbers is " << average << endl;
+
+    return 0;
+}

week-03/icecream.cpp

@@ -0,0 +1,101 @@
+// Lab 3 icecream.cpp
+
+// WRITE A COMMENT BRIEFLY DESCRIBING THE PROGRAM.
+// Giving us the number of icecream cones sold
+// of each type of selection and we will work
+// out the total of your turnover
+
+// PUT YOUR NAME HERE.
+// Llewellyn van der Merwe
+
+#include <iostream>
+#include <iomanip>
+#include <string>
+using namespace std;
+
+int main()
+{
+    // DEFINE NAMED CONSTANTS HERE TO HOLD THE PRICES OF THE 3
+    // SIZES OF ICE CREAM CONES. GIVE EACH ONE A DESCRIPTIVE
+    const double one_scoop_cost = 1.49, two_scoop_cost = 2.49, three_scoop_cost = 3.49;
+
+    // NAME AND AN APPROPRIATE DATA TYPE.
+    int scoop_qty, one_scoop_qty, two_scoop_qty, three_scoop_qty;
+
+    // DECLARE ALL NEEDED VARIABLES HERE. GIVE EACH ONE A DESCRIPTIVE
+    // NAME AND AN APPROPRIATE DATA TYPE.
+    double scoop_total = 0.00, one_scoop_total = 0.00, two_scoop_total = 0.00, three_scoop_total = 0.00;
+
+    // WRITE STATEMENTS HERE TO PROMPT FOR AND INPUT THE INFORMATION
+    // THE PROGRAM NEEDS TO GET FROM THE USER.
+
+    // get the one scoop qty
+    while (true)
+    {
+        cout << "Number of single scoop cones sold: ";
+        cin >> one_scoop_qty;
+        if(cin.fail()) {
+            cin.clear(); cin.ignore();
+            cout << "\nMust be a integer number like 220 or 0 for none\n" << endl;
+        } else break;
+    }
+    // get the two scoop qty
+    while (true)
+    {
+        cout << "Number of double scoop cones sold: ";
+        cin >> two_scoop_qty;
+        if(cin.fail()) {
+            cin.clear(); cin.ignore();
+            cout << "\nMust be a integer number like 414 or 0 for none\n" << endl;
+        } else break;
+    }
+    // get the three scoop qty
+    while (true)
+    {
+        cout << "Number of triple scoop cones sold: ";
+        cin >> three_scoop_qty;
+        if(cin.fail()) {
+            cin.clear(); cin.ignore();
+            cout << "\nMust be a integer number like 220 or 0 for none\n" << endl;
+        } else break;
+    }
+    // WRITE STATEMENTS HERE TO PERFORM ALL NEEDED COMPUTATIONS
+    // AND ASSIGN THE RESULTS TO VARIABLES.
+
+    // calculate the one scoop total
+    if (one_scoop_qty > 0){
+        one_scoop_total = one_scoop_cost * one_scoop_qty;
+    }
+    // calculate the two scoop total
+    if (two_scoop_qty > 0){
+        two_scoop_total = two_scoop_cost * two_scoop_qty;
+    }
+    // calculate the three scoop total
+    if (three_scoop_qty > 0){
+        three_scoop_total = three_scoop_cost * three_scoop_qty;
+    }
+
+    // workout the total
+    scoop_qty = one_scoop_qty + two_scoop_qty + three_scoop_qty;
+    scoop_total = one_scoop_total + two_scoop_total + three_scoop_total;
+
+    // WRITE STATEMENTS HERE TO DISPLAY THE REQUESTED INFORMATION.
+
+    // values for controlling format
+    // adapted from http://www.cplusplus.com/forum/beginner/181119/
+    const int name_width = 21;
+    const int qty_width = std::to_string(scoop_qty).size();
+    const int price_width = std::to_string((int) scoop_total).size() + 3;
+    const std::string spacer = " ";
+
+    std::cout << "\n" << left << std::setw(name_width) << "DeLIGHTful cones" << spacer << right << std::setw(qty_width) << one_scoop_qty << spacer
+            << "  $" << std::setw(price_width) << std::fixed << std::setprecision(2) << one_scoop_total << '\n';
+    std::cout << left << std::setw(name_width) << "Double DeLIGHT cones" << spacer << right << std::setw(qty_width) << two_scoop_qty << spacer
+            << "  $" << std::setw(price_width) << std::fixed << std::setprecision(2) << two_scoop_total << '\n';
+    std::cout << left << std::setw(name_width) << "Triple DeLIGHT cones" << spacer << right << std::setw(qty_width) << three_scoop_qty << spacer
+            << "  $" << std::setw(price_width) << std::fixed << std::setprecision(2) << three_scoop_total << '\n';
+    std::cout << left << std::setw(name_width) << "Total" << spacer << right << std::setw(qty_width) << scoop_qty << spacer
+            << "  $" << std::setw(price_width) << std::fixed << std::setprecision(2) << scoop_total << '\n';
+
+    return 0;
+}

week-03/table.cpp

@@ -0,0 +1,60 @@
+// Lab 3 table.cpp
+// This program reads data from a file and
+// prints it in a nicely aligned table.
+// Llewellyn van der Merwe
+
+#include <iostream>
+// INCLUDE THE FILE NEEDED TO USE FILES.
+// INCLUDE THE FILE NEEDED TO FORMAT OUTPUT.
+// INCLUDE THE FILE NEEDED TO USE STRINGS.
+#include <fstream>
+#include <iomanip>
+#include <string>
+using namespace std;
+
+int main()
+{
+    string code,     // Item code of an inventory item
+    description;     // Description of an inventory item
+    int quantity;    // Quantity in stock of an inventory item
+
+    // values for controlling format
+    // adapted from http://www.cplusplus.com/forum/beginner/181119/
+    const int code_width = 15;
+    const int dsc_width =  30;
+    const int qty_width = 15;
+    const int num_fields = 3;
+    const std::string spacer = " |";
+    const int total_width = code_width + dsc_width + qty_width + spacer.size() * num_fields;
+    const std::string line = spacer + std::string( total_width-1, '-' ) + '|';
+
+    ifstream dataIn; // Define an input file stream object
+    // WRITE A STATEMENT TO OPEN THE table.dat FILE THAT WILL BE
+    dataIn.open("../table.txt");
+    // little error checking
+    if (dataIn.fail()) {
+        cout << "Couldn't open the file, check your file path!" << endl;
+        return 0;
+    }
+    // ACCESSED THROUGH THE dataIn FILE STREAM OBJECT.
+    if (dataIn.is_open()) {
+        // Print table heading
+        cout << line << '\n' << std::setw(40) << "Warehouse Inventory" << '\n';
+        std::cout << line << '\n' << spacer
+            << std::setw(code_width) << "Item Code" << spacer << std::setw(dsc_width) << "Item Description" << spacer
+            << std::setw(qty_width) << "Item Qty" << spacer << '\n' << line << '\n';
+
+        // Read in five data records and display them
+        while (dataIn >> code >> description >> quantity) {
+            std::cout << spacer  << std::setw(code_width) << code << spacer << std::setw(dsc_width) << description << spacer
+                      << std::setw(qty_width) << quantity << spacer << '\n';
+        }
+        std::cout << line << '\n' ;
+        // REPEAT THE ABOVE CODE FOR RECORDS 2 THROUGH 5.
+        // Close the file
+        // WRITE A STATEMENT TO CLOSE THE DATA FILE.
+        dataIn.close();
+    }
+
+    return 0;
+}