guys pls help. if else statement

[keyless]

here's a sample problem. can anyone pls help?

A program that will accept the following:
1. Plate Number of a car.
2. Parking Level
3. Number of Hours Parked

Compute and display the Parking Fee based on the following:
1. First 2 hours = 30 pesos
2. Succeeding Hours = 20 pesos / hour
3. Parking Level A -> No Discount
4. Parking Level B -> 5% Discount
5. Parking Level C -> 10% Discount
6. Other parking Level -> "Invalid Input"

[Dragonster82]

We don't help you do your homework, why don't you post what you have done so far and we'll help you from there.

[EAUX92yv]

Do you wish to know how to use if, else if, and else statements? If so, if statements test if a variable matches a certain value.
Example:


int num;
cout<<"Enter a number.\n";
cin>>num;
if (num="1")
{
cout<<"Your number is 1.\n";
}
else if (num="2")
{
cout<<"Your number is 2.\n";
}
else
{
cout<<"Your number is another number.\n";
}

I hope I helped! Also, remember to never put a semicolon after the parentheses of an if or else if statement!

[keyless]

here's what ive done so far. im kinda new in programming. pls do comment. thanks

#include "stdafx.h"
#include <iostream>
#include <conio.h>
#include <string>
using namespace std;


int main()

{
// declarations
std::string plateNum;
int hoursParked;
int parkformula;
char floorLevel;
int totalhours;
//inputs
	cout<<"Welcome to my first parking fee program."<<endl;
	cout<<endl<<endl;
    cout<< "Please Input the plate number of your Vehicle: ";
    cin>> plateNum;
	cout<<endl;
	cout<<"Parking Fee : 30php for the first 2 hours,"<<endl;
	cout<<"and additional 20php per succeeding hour."<<endl;
	cout<<endl;
	cout<<"Please Enter Hours Parked: ";
	cin>> hoursParked;
	cout<<endl<<endl;
	cout<<"Floor level discounts"<<endl;
	cout<<"a=no discount, b=5% discount, c=10% discount"<<endl;
	cout<<endl<<"Please Enter Floor Level: ";
	cin>>floorLevel;
	cout<<endl;
//formula of discount
	totalhours=30+(hoursParked*20-40);
	{
   if (hoursParked <=2)
	   if (floorLevel == 'a')
		{
		   cout<<"Floor Level A Price is 30 php "<<endl;
	   }
	   else if (floorLevel == 'b')
		{
		cout<<"Floor Level B Discounted Price: "<<totalhours-(totalhours*.05)<<"php"<<endl;
	   }

	   else if (floorLevel == 'c')
	   {
		   cout<<"Floor Level C Discounted Price: "<<totalhours-(totalhours*.10)<<"php"<<endl;
	   }
	   else
		   cout<<"invalid input";
	}
	{
	if (hoursParked >=3)
		 if (floorLevel == 'a')
		{
		   cout<<"Floor Level A Price (No Discount): "<<totalhours<<"php"<<endl;
	   }
	   else if (floorLevel == 'b')
		{
		cout<<"Floor Level B Discounted Price: "<<totalhours-(totalhours*.05)<<"php"<<endl;
	   }

	   else if (floorLevel == 'c')
	   {
		   cout<<"Floor Level C Discounted Price: "<<totalhours-(totalhours*.10)<<"php"<<endl;
	   }
	   else
		   cout<<"invalid input";
	}
getch();
return 0;

}

[3qX21hU5]

	   else
		   cout<<"invalid input";
	}
	{

Your code is not in the braces here. You dont need the braces if the IF has only 1 statement, but its a good idea to use braces anyways incase you add onto the program later.

It is really hard to determine what braces match to what braces. So I might be wrong but it looks like you dont have any opening braces for your if statements.

So be consistent with your braces. What I mean is this, here are 2 examples where you place your braces in different positions.

else if (floorLevel == 'b')
		{
		cout<<"Floor Level B Discounted Price: "<<totalhours-(totalhours*.05)<<"php"<<endl;
	   }

	   else if (floorLevel == 'c')
	   {
		   cout<<"Floor Level C Discounted Price: "<<totalhours-(totalhours*.10)<<"php"<<endl;
	   }

What ever style you use is up to you just be consistent with whatever style you use.

Just a few pointers