//DISPLAY 10.6 /Program to demonstrate the class BankAccount.//Demonstrates an alternative implementation of the class BankAccount.#include<iostream>using namespace std;//Class for a bank account:classBankAccount {public: BankAccount(intdollars,intcents,doublerate);//Initializes the account balance to $dollars.cents and//initializes the interest rate to rate percent.BankAccount(intdollars,doublerate);//Initializes the account balance to $dollars.00 and//initializes the interest rate to rate percent.BankAccount( );//Initializes the account balance to $0.00 and the interest rate to 0.0%.voidupdate( );//Postcondition: One year of simple interest has been added to the account//balance.doubleget_balance( );//Returns the current account balance.doubleget_rate( );//Returns the current account interest rate as a percentage.voidoutput(ostream& outs);//Precondition: If outs is a file output stream, then//outs has already been connected to a file.//Postcondition: Account balance and interest rate//have been written to the stream outs.private:doublebalance;doubleinterest_rate;doublefraction(doublepercent);//Converts a percentage to a fraction. For example, fraction(50.3)//returns 0.503.};intmain( ) { BankAccount account1(100, 2.3), account2; cout <<"account1 initialized as follows:\n"; account1.output(cout); cout <<"account2 initialized as follows:\n"; account2.output(cout); account1 = BankAccount(999, 99, 5.5); cout <<"account1 reset to the following:\n"; account1.output(cout);return0; }BankAccount::BankAccount(intdollars,intcents,doublerate) {if((dollars < 0) || (cents < 0) || (rate < 0)) { cout <<"Illegal values for money or interest rate.\n"; } balance = dollars + 0.01*cents; interest_rate = rate; }BankAccount::BankAccount(intdollars,doublerate) {if((dollars < 0) || (rate < 0)) { cout <<"Illegal values for money or interest rate.\n"; } balance = dollars; interest_rate = rate; }BankAccount::BankAccount( ) : balance(0), interest_rate(0.0) {//Body intentionally empty.}//Uses iostream:voidBankAccount::output(ostream& outs) { outs.setf(ios::fixed); outs.setf(ios::showpoint); outs.precision(2); outs <<"Account balance $"<< balance << endl; outs <<"Interest rate "<< interest_rate <<"%"<< endl; }

This topic: SCMP118 > Main > Fall2017 > Lab7Startup

Topic revision: r1 - 2017-10-23 - JimSkon

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