大学教程实验报告

1、班级：计科1203 姓名： 日期：2013. 11. 15 学号： 实验1 创建SavingAccount类1. 实验内容：创建一个SavingAccount类。使用一个static数据成员annualInterestRate保存每个存款者的年利率。2. 代码实现：/ SavingAccount.hclass SavingAccountpublic: SavingAccount(double); static void modifyInterestRate(double); double calculateMonthlyInterest();/计算月利息与余额 void show(); /显示

2、余额private: double static annualInterestRate ; double savingsBalance; ;/ SavingAccount.cpp#include<iostream>using std:cout;using std:cin;using std:endl;using std:fixed;#include<iomanip>using std:setw;using std:setprecision;#include"SavingAccount"SavingAccount:SavingAccount( doub

3、le Balance)/传递余额参数 savingsBalance = Balance;void SavingAccount:modifyInterestRate(double Rate)/传递利率参数annualInterestRate = Rate;double SavingAccount:calculateMonthlyInterest() savingsBalance += savingsBalance * ( annualInterestRate / 12); return savingsBalance; void SavingAccount:show()cout<<&q

4、uot;This month's new savings balance is ：" cout << fixed << setprecision( 2 );cout<<setw(8) << savingsBalance << endl;/ testSavingAccount.cpp#include"SavingAccount.h"double SavingAccount:annualInterestRate=0.00;int main() double a, b;SavingAccount sav

5、er1(2000.00);saver1.modifyInterestRate(0.03);a = saver1.calculateMonthlyInterest();saver1.show();SavingAccount saver2(3000.00);saver2.modifyInterestRate(0.03);b = saver2.calculateMonthlyInterest();saver2.show(); SavingAccount saver11(a);saver11.modifyInterestRate(0.04);saver11.calculateMonthlyIntere

6、st();saver11.show();SavingAccount saver22(b);saver22.modifyInterestRate(0.04);saver22.calculateMonthlyInterest();saver22.show();return 0;3. 执行结果： 实验2 创建IntegerSet类1. 实验内容：创建IntegerSet类，它的每个对象可存储0到100范围内的整数。集合在内部表示为0和1的数组。默认构造函数将集合初始化为所谓的“空集合”，提供另一个构造函数，它接受一个整数的数组以及该数组的大小，并使用该数组初始化集合对象。2. 代码实现：/ Inte

7、gerSet.h#ifndef INTEGER_SET_H#define INTEGER_SET_Hclass IntegerSet public: IntegerSet() / 默认构造函数初始化为空集合 emptySet(); IntegerSet( int , int ); / 构造函数传入一个数组初始化 IntegerSet unionOfSets( const IntegerSet& ); /并集 IntegerSet intersectionOfSets( const IntegerSet& ); /交集 void emptySet(); / 设为空集合 void

8、inputSet(); / 输入数组及大小 void insertElement( int ); void deleteElement( int ); void printSet() const; bool isEqualTo( const IntegerSet& ) const;private: int set 101 ; int validEntry( int x ) const return ( x >= 0 && x <= 100 ); ; #endif/ IntegerSet.cpp#include <iostream> using s

9、td:cout; using std:cin; using std:cerr;#include <iomanip> using std:setw; #include "IntegerSet.h" IntegerSet:IntegerSet( int array, int size) emptySet(); /初始化为空集合 for ( int i = 0; i < size; i+ ) insertElement( array i );/接受传入的数组和数组大小 void IntegerSet:emptySet()for( int i = 0; i <

10、; 101; i+)seti = 0;void IntegerSet:inputSet() int number; do cout << "Enter an element（-1 to end）: " cin >> number; if ( validEntry( number ) ) set number = 1; else if ( number != -1 )/数值为-1时，停止输入 cerr << "Invalid Elementn" while ( number != -1 ); cout <<

11、"Entry completen" void IntegerSet:printSet() const int x = 1; bool empty = true; cout << '' for (int j = 0; j < 101; j+ ) if ( set j ) cout << setw( 4 ) << j << ( x % 10 = 0 ? "n" : "" ); empty = false; x+; if ( empty ) cout << s

12、etw( 4 ) << "-" cout << setw( 4 ) << "" << 'n' IntegerSet IntegerSet:unionOfSets( const IntegerSet &r ) IntegerSet temp; for ( int n = 0; n < 101; n+ ) if ( set n = 1 | r.set n = 1 ) temp.set n = 1; return temp;IntegerSet IntegerSet:intersec

13、tionOfSets( const IntegerSet &p )IntegerSet temp;for( int i = 0; i < 101; i+ )if( set i = 1 && p.set i =1 )temp.set i = 1;elsetemp.set i = 0;return temp;void IntegerSet:insertElement( int k ) if ( validEntry( k ) ) set k = 1; else cerr << "Invalid insert attempted!n" v

14、oid IntegerSet:deleteElement( int number)for( int i = 0; i < 101; i+ )if( i = number ) seti = 0;bool IntegerSet:isEqualTo( const IntegerSet &r ) const for ( int j = 0; j < 101; j+ ) if ( set j != r.set j ) return false; return true; /testIntegerSet.cpp#include <iostream> using std:co

15、ut; using std:endl; #include<cstdlib>#include "IntegerSet.h" int main()IntegerSet a;IntegerSet b;IntegerSet c;IntegerSet d;cout << "Enter set A:n"a.inputSet();cout << "nEnter set B:n"b.inputSet();system("pause"); system("cls");c = a

16、.unionOfSets( b );cout << "nUnion of A and B is:n"c.printSet();d = ersectionOfSets( b );cout << "Intersection of A and B is:n"d.printSet();if ( a.isEqualTo( b ) )cout << "Set A is equal to set Bn"elsecout << "Set A is not equal to set B

17、n"cout << "nInserting 77 into set A.n"a.insertElement( 77 );cout << "Set A is now:n"a.printSet();cout << "nDeleting 77 from set A.n"a.deleteElement( 77 );cout << "Set A is now:n"a.printSet();const int arraySize = 10;int intArray ar

18、raySize = 25, 67, 2, 9, 99, 105, 45, -5, 100, 1 ;IntegerSet e( intArray, arraySize );cout << "nSet e is:n"e.printSet();cout << endl;return 0;3. 执行结果： 实验3 修改Time类1. 实验内容：修改使内部时间表示采用自午夜以来的秒数，客户可以使用类的public方法并获得相同的结果。且对于类的客户并没有任何可见的功能上的改变。2. 代码实现：/Time1.hclass Time1public:Time1 (

19、int = 0 );Time1 &setTime( int );Time1 &setSecond( int );int getSecond();int getMinute();int getHour();void printUniversal() const;void printStandard() const;private:int Second;int static Hour;int static Minute;/Time1.cpp#include <iostream>#include <iomanip>#include <windows.h&

20、gt;using namespace std;#include "Time1.h"int Time1:Hour = 0; /staticint Time1:Minute = 0; /staticTime1:Time1( int Second )setTime(Second);Time1& Time1:setSecond( int second )if( second <= 59 )Hour = 0;Minute =0;elseMinute = second / 60; Second = second % 60; if( Minute <= 59 ) Ho

21、ur = 0; else Hour = Minute / 60; Minute = Minute % 60; return *this;Time1 &Time1:setTime( int second )setSecond(second);return *this;void Time1:printUniversal() constcout << setfill('0') << setw( 2 ) << Hour % 24 << ":" << setw( 2 ) << Minute

22、 << ":" << setw( 2 ) << Second << endl;void Time1:printStandard() constcout << (Hour = 0|Hour = 12) ? 12 : Hour % 12) << ":" << setfill('0') << setw( 2 ) << Minute << ":" << setw( 2 ) << Sec

23、ond << (Hour <= 12)? " AM " :" PM ") << endl;/创建代理类Time.hclass Time1;class Timepublic:Time( int = 0 );Time();Time &setTime( int );Time &setSecond( int );int getSecond();int getMinute();int getHour();void printUniversal() const;void printStandard() const;private:Time1 *ptr;/Time.cpp#include <iostream>#include <iomanip>#inc