ABSOLUTE C 4TH EDITION PART 4 DOCX

location of the include directive. A library name is simply the name of a file that includesall the definition of items in the library. We will eventually discuss using include direc-tives for things other than standard libraries, but for now we only need include direc-tives for standard C++ libraries[r]

304 Operator Overloading, Friends, and ReferencesDisplay 8.1 Operator Overloading (part 1 of 5)1 #include <iostream>2 #include <cstdlib>3 #include <cmath>4 using namespace std;5 //Class for amounts of money in U.S. currency6 class Money7 {8 public:9 M[r]

Display 4.7 Revised Pizza Program (part 3 of 3)63 double unitPrice(int length, int width, double price)64 {65 double area = length * width;66 return (price/area);67 }SAMPLE DIALOGUEWelcome to the Pizza Consumers Union.Enter the diameter in inches of a round pizza: 10Enter the price of a round pizza:[r]

quizAve. This display shows some sample data for the array grade. These data, in turn, deter-mine the values that the program stores in stAve and in quizAve. Display 5.11 also shows these values, which the program computes for stAve and quizAve.The complete program for filling the array grade and th[r]

returns. A function definition consists of a function header followed by a function body.The function header is written similar to the function declaration, except that theheader does not have a semicolon at the end. The value returned is determined by thestatements in the function body.The function[r]

named global constant. If we had written the global constant MAX_NUMBER_SCORES into the body of the function fillArray, we would not have been able to reuse the function in the pro-gram in Display 5.6. Even if we used fillArray in only one program, it can still be a good idea to make the declared ar[r]

Display 5.4 Production Graph Program (part 1 of 4)1 //Reads data and displays a bar graph showing productivity for each plant.2 #include <iostream>3 #include <cmath>4 using namespace std;5 const int NUMBER_OF_PLANTS = 4;6 void inputData(int a[], int l[r]

Not all comment assertions can easily be translated into C++ Boolean expressions.Preconditions are more likely to translate easily than postconditions are. Thus, theassert macro is not a cure-all for debugging your functions, but it can be very useful.■STUBS AND DRIVERSEach function should be design[r]

xy+7 3xy+z 2+ 01_CH01.fm Page 22 Wednesday, August 20, 2003 2:21 PMVariables, Expressions, and Assignment Statements 236. What is the output of the following program lines when they are embedded in a correct program that declares number to be of type int? number = (1/3) * 3; cout << "([r]

8. Give a function definition corresponding to the following function declaration. (The type ShoeType is given in Self-Test Exercise 2.)ShoeType discount(ShoeType oldRecord);//Returns a structure that is the same as its argument, //but with the price reduced by 10%.ClassesWe all know—the Times knows[r]

Forgot the & hereForgot the & hereInadvertentlocal variablesError due to inadvertent local variables04_CH04.fm Page 148 Wednesday, August 13, 2003 12:49 PMParameters 149Display 4.5 Buying Pizza (part 1 of 2)1 //Determines which of two pizza sizes is the best buy.2 #include <io[r]

sion of a while or do-while statement. If done with care, this can work out satisfactorily.An example is given in Display 2.6. Be sure to notice that in count++ <= number-OfItems, the value returned by count++ is the value of count before it is incremented. Display 2.5 Example of a do-while S[r]

getInput(inputNumber); C++ allows you to place the ampersand either with the type name or with theparameter name, so you will sometimes see void getInput(double &receiver); which is equivalent to void getInput(double& receiver); Display 4.2 demonstrates call-by-reference parameters.[r]

modifier. For example, in Display 3.5 we used the const modifier to give a name to therate of sales tax with the following declaration:const double TAXRATE = 0.05; //5% sales taxIf this declaration is inside the definition of a function, as in Display 3.5, then thename TAXRATE is local to the function[r]

invocation#include directive94 Function Basics Usually, all you need do to use a library is to place an include directive and a using directive for that library in the file with your program. If things work with just thesedirectives, you need not worry about doing anything else. However, for some[r]

In Display 6.2 we have rewritten the class for a certificate of deposit from Display 6.1. This new ver-sion has a member variable of the structure type Date that holds the date of maturity. We have also replaced the single balance member variable with two new member variables giving the initial bala[r]

15. a. Only one. The compiler warns if you have no public: members in a class (or struct, for that matter).b. None, but we normally expect to find at least one private: section in a class.16. The member variables should all be private. The member functions that are part of the interface should be pub[r]

const int x = 17;class A{public: A( ); A(int n); int f( )const; int g(const A& x);private: int i;};Each of the three const keywords is a promise to the compiler that the compiler will enforce. What is the promise in each case?07_CH07.fm Page 281 Wednesday, August 13, 2003 12:58 PM282 Constru[r]

Constructors 269Display 7.2 BankAccount Class (part 1 of 5)1 #include <iostream>2 #include <cmath>3 #include <cstdlib>4 using namespace std;5 //Data consists of two items: an amount of money for the account balance 6 //and a percentage for the interes[r]

THINKING OBJECTSIf you have not programmed with classes before, it can take a little while to get the feel of pro-gramming with them. When you program with classes, data rather than algorithms takes center stage. It is not that there are no algorithms. However, the algorithms are made to fit the dat[r]