(or it is nowadays)
You're right, you should put everything on its own line for readability, the couts can be chained without really hurting how easy it is to read. However, the return call isn't needed in fastdudes post (or your updated code) because the main function is a void.
int main(int argc, char *argv[])It's a pretty useful block when you need to test 1 variable for a series of different values but if you have a complex check you need to use if statements. You can put multiple values in the same case if they all need to be treated the same. The break statements are also important because wihout them all the code below will execute, as seen in the second code block below.
switch (var) {
case <value>: //if var = <value> code1 runs
code1;
break;
case <value2>, <value3>: //if var = value2 or var = value3 code2 runs
code2;
break;
default: //this is like an else on an if statement
code3;
}switch (var) {
case <value>: //if var = <value> code1 runs
code1;
break;
case <value2>, <value3>: //if var = <value2> or var = <value3> code2 and code3 will run
code2;
default:
code3;
}
// lab11.cpp : Defines the entry point for the console application.
//
//Adam Holthaus, steve05
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <stdlib.h>
using namespace std;
double balance(double, double, double, double);
int _tmain(int argc, _TCHAR* argv[])
{
//Declaring variables
double monthlyrate, monthlypay, m1, m2, m3, m4, rate, oldb, newb, loan, years, numpayments, apy, month, yrs;
month = 1;
newb = 0;
//Getting loan info
cout <<"What is the value of the loan? $";
cin >> loan;
oldb = loan;
cout <<"For how long will you have the loan? ";
cin >> years;
cout <<"What percentage is your APY? ";
cin >> apy;
//Getting monthly payment
numpayments = years*12;
monthlyrate = apy/1200;
rate = monthlyrate+1;
m1 = pow(rate, numpayments);
m2 = monthlyrate*m1;
m3 = m1-1;
m4 = m2/m3;
monthlypay = m4*loan;
//Finding new balance
for(yrs = 1; yrs <= years; yrs++)
{
while(month < 12)
{
newb = balance(newb, oldb, monthlypay, rate);
month++;
}
cout <<newb <<endl;
}
return 0;
}
//newbalance.cpp calculates the new balance each month for one year, for lab11
//Adam Holthaus, steve05
#include "stdafx.h"
//Function
double balance(double newb, double oldb, double monthlypay, double rate)
{
newb = oldb + oldb*rate - monthlypay;
return newb;
}