added source code.

SourceCode/Appendix F/PrF-1.cpp

@@ -0,0 +1,19 @@
+// Demonstrates a simple namespace
+#include <iostream>
+using namespace std;
+
+namespace test
+{
+int x, y, z;
+}
+
+int main()
+{
+   test::x = 10;
+   test::y = 20;
+   test::z = 30;
+   cout << "The values are:\n";
+   cout << test::x << " " << test::y
+        << " " << test::z << endl;
+   return 0;
+}

SourceCode/Appendix F/PrF-2.cpp

@@ -0,0 +1,30 @@
+// Demonstrates two namespaces
+#include <iostream>
+using namespace std;
+
+namespace test1
+{
+   int x, y, z;
+}
+
+namespace test2
+{
+   int x, y, z;
+}
+
+int main()
+{
+   test1::x = 10;
+   test1::y = 20;
+   test1::z = 30;
+   cout << "The test1 values are:\n";
+   cout << test1::x << " " << test1::y
+        << " " << test1::z << endl;
+   test2::x = 1;
+   test2::y = 2;
+   test2::z = 3;
+   cout << "The test2 values are:\n";
+   cout << test2::x << " " << test2::y
+        << " " << test2::z << endl;
+   return 0;
+}

SourceCode/Appendix F/PrF-3.cpp

@@ -0,0 +1,17 @@
+// A demonstration of the using namespace statement.
+#include <iostream>
+#include "nsdemo.h"
+using namespace std;
+using namespace demo;
+
+int main()
+{
+   testObject.x = 10;
+   testObject.y = 20;
+   testObject.z = 30;
+   cout << "The values are:\n"
+        << testObject.x << " "
+        << testObject.y << " "
+        << testObject.z << endl;
+   return 0;
+}

SourceCode/Appendix F/nsdemo.h

@@ -0,0 +1,15 @@
+// This file defines a namespace named demo. 
+// In the demo namespace a class named NsDemo
+// is declared, and an instance of the class
+// named testObject is defined.
+
+namespace demo
+{
+   class NsDemo
+   {
+      public:
+         int x, y, z;
+   };
+
+   NsDemo testObject;
+}

SourceCode/Appendix G/argdemo.cpp

@@ -0,0 +1,17 @@
+// This program demonstrates how to read
+// command line arguments.
+#include <iostream>
+using namespace std;
+
+int main(int argc, char *argv[])
+{
+   cout << "You entered " << (argc - 1);
+   cout << " command line arguments.\n";
+   if (argc > 1)
+   {
+      cout << "Here they are:\n";
+      for (int count = 1; count < argc; count++)
+         cout << argv[count] << endl;
+   }
+   return 0;
+}

SourceCode/Appendix G/sum.cpp

@@ -0,0 +1,18 @@
+// This program takes two command line arguments,
+// assumed to be numbers, and displays their sum.
+#include <iostream>
+#include <cmath>  // Needed for atof
+using namespace std;
+
+int main(int argc, char *argv[])
+{
+   double total = 0;
+
+   if (argc > 1)
+   {
+      for (int count = 1; count < argc; count++)
+         total += atof(argv[count]);
+      cout << total << endl;
+   }
+   return 0;
+}

SourceCode/Appendix J/Pet.cpp

@@ -0,0 +1,16 @@
+// Pet class implementation file
+#include <string>
+#include "Pet.h"
+using namespace std;
+
+// Constructor
+Pet::Pet(string str)
+{
+   name = str;
+}
+
+// getName member function
+string Pet::getName() const
+{
+   return name;
+}

SourceCode/Appendix J/Pet.h

@@ -0,0 +1,20 @@
+// Pet class specification file
+#ifndef PET_H
+#define PET_H
+#include <string>
+using namespace std;
+
+class Pet
+{
+private:
+   string name;   // To hold the pet's name
+
+public:
+   // Constructor
+   Pet(string);
+
+   // Accessor function for name
+   string getName() const;
+};
+
+#endif

SourceCode/Appendix J/PrJ-1.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+#include "Pet.h"
+using namespace std;
+
+int main()
+{
+   // Create an instance of the Pet class.
+   Pet myPet("Fido");
+
+   // Display my pet's name.
+   cout << "My pet's name is " << myPet.getName() << endl;
+   return 0;
+}

SourceCode/Appendix J/PrJ-2.cpp

@@ -0,0 +1,34 @@
+// This program uses the Rectangle class, which is declared in
+// the Rectangle.h file. The Rectangle class's member functions
+// are defined in the Rectangle.cpp file. This program should
+// be compiled with those files in a project.
+#include <iostream>
+#include "Rectangle.h"  // Needed for Rectangle class
+using namespace std;
+
+int main()
+{
+   Rectangle box;     // Define an instance of the Rectangle class
+   double rectWidth;  // Local variable for width
+   double rectLength; // Local variable for length
+
+   // Get the rectangle's width and length from the user.
+   cout << "This program will calculate the area of a\n";
+   cout << "rectangle. What is the width? ";
+   cin >> rectWidth;
+   cout << "What is the length? ";
+   cin >> rectLength;
+
+   // Store the width and length of the rectangle
+   // in the box object.
+   box.setWidth(rectWidth);
+   box.setLength(rectLength);
+
+   // Display the rectangle's data.
+   cout << "Here is the rectangle's data:\n";
+   cout << "Width: " << box.getWidth() << endl;
+   cout << "Length: " << box.getLength() << endl;
+   cout << "Area: " << box.getArea() << endl;
+
+   return 0;
+}

SourceCode/Appendix J/Rectangle.cpp

@@ -0,0 +1,62 @@
+// Implementation file for the Rectangle class.
+#include "Rectangle.h"   // Needed for the Rectangle class
+#include <iostream>      // Needed for cout
+#include <cstdlib>       // Needed for the exit function
+using namespace std;
+
+//***********************************************************
+// setWidth sets the value of the member variable width.    *
+//***********************************************************
+
+void Rectangle::setWidth(double w)
+{
+   if (w >= 0)
+      width = w;
+   else
+   {
+      cout << "Invalid width\n";
+      exit(EXIT_FAILURE);
+   }
+}
+
+//***********************************************************
+// setLength sets the value of the member variable length.  *
+//***********************************************************
+
+void Rectangle::setLength(double len)
+{
+   if (len >= 0)
+      length = len;
+   else
+   {
+      cout << "Invalid length\n";
+      exit(EXIT_FAILURE);
+   }
+}
+
+//***********************************************************
+// getWidth returns the value in the member variable width. *
+//***********************************************************
+
+double Rectangle::getWidth() const
+{
+   return width;
+}
+
+//*************************************************************
+// getLength returns the value in the member variable length. *
+//*************************************************************
+
+double Rectangle::getLength() const
+{
+   return length;
+}
+
+//************************************************************
+// getArea returns the product of width times length.        *
+//************************************************************
+
+double Rectangle::getArea() const
+{
+   return width * length;
+}

SourceCode/Appendix J/Rectangle.h

@@ -0,0 +1,20 @@
+// Specification file for the Rectangle class.
+#ifndef RECTANGLE_H
+#define RECTANGLE_H
+
+// Rectangle class declaration.
+
+class Rectangle
+{
+   private:
+      double width;
+      double length;
+   public:
+      void setWidth(double);
+      void setLength(double);
+      double getWidth() const;
+      double getLength() const;
+      double getArea() const;
+};
+
+#endif

SourceCode/Appendix J/RectangleData.cpp

@@ -0,0 +1,33 @@
+// This program uses the Rectangle class's specification
+// and implementation files.
+#include <iostream>
+#include "Rectangle.h"	// Contains the class declaration.
+using namespace std;
+
+int main()
+{
+	Rectangle box;		// Define an instance of the class.
+	float rectWidth,	// Local varibale for width.
+		  rectLength;	// Local variable for length.
+
+	// Get the rectangle's width and length from the user.
+	cout << "This program will calculate the area of a\n";
+	cout << "rectangle. What is the width? ";
+	cin >> rectWidth;
+	cout << "What is the length? ";
+	cin >> rectLength;
+
+	if (!box.setWidth(rectWidth))			// Store the width.
+		cout << "Invalid value for width.\n";
+	else if (!box.setLength(rectLength))	// Store the length.
+		cout << "Invalid value for length.\n";
+	else
+	{
+		// Display the rectangle's data.
+		cout << "Here is the rectangle's data:\n";
+		cout << "Width: " << box.getWidth() << endl;
+		cout << "Length: " << box.getLength() << endl;
+		cout << "Area: " << box.getArea() << endl;
+	}
+	return 0;
+}

SourceCode/Appendix K/PrK-1.cpp

@@ -0,0 +1,31 @@
+// This program asks for sales figures for 3 days. The total
+// sales is calculated and displayed in a table.
+#include <iostream>
+#include <iomanip>
+using namespace std;
+
+int main()
+{
+   double day1, day2, day3, total;
+
+   cout << "Enter the sales for day 1: ";
+   cin >> day1;
+   cout << "Enter the sales for day 2: ";
+   cin >> day2;
+   cout << "Enter the sales for day 3: ";
+   cin >> day3;
+
+   total = day1 + day2 + day3;
+
+   cout.precision(2);
+   cout.setf(ios::fixed | ios::showpoint);
+
+   cout << "\nSales Figures\n";
+   cout << "-------------\n";
+   cout << "Day 1: " << setw(8) << day1 << endl;
+   cout << "Day 2: " << setw(8) << day2 << endl;
+   cout << "Day 3: " << setw(8) << day3 << endl;
+   cout << "Total: " << setw(8) << total << endl;
+
+   return 0;
+}

SourceCode/Appendix K/PrK-2.cpp

@@ -0,0 +1,14 @@
+// This program uses cin's width member function.
+#include <iostream>
+using namespace std;
+
+int main()
+{
+   char word[5];
+
+   cout << "Enter a word: ";
+   cin.width(5);
+   cin >> word;
+   cout << "You entered " << word << endl;
+   return 0;
+}