Thread: If else /else if problem

  1. #1
    Registered User
    Join Date
    Sep 2011

    If else /else if problem

    Ok so, I feared this would happen when I compiled and ran, and surely enough it did.
    I'm getting a logical error within this program and i cant figure out how to fix it. I want to make it so that when I enter any of the numbers between 0 - 19, 20 - 39, 40 - 59, or 60+, it will only do the calculation of the entered number by the specific decimal value assigned to that group of numbers. Take a look at my code and you'll understand what im talking about

    #include <iostream>
    using namespace std;
    int main()
    	double checkAmount;
    	int monthBankCharge = 10;
    	cout << "Enter the amount of checks you've written in the past month\n"; 
    	cin >> checkAmount;
    	if (checkAmount < 20)
    	{ cout << checkAmount * 0.10 << endl;}
    	else if (checkAmount >= 20)
    	{ cout << checkAmount * 0.08 << endl;}
    	else if (checkAmount >= 40)
    	{ cout << checkAmount * 0.06 << endl;}
    	else if (checkAmount >= 60)
    	{ cout << checkAmount * 0.04 << endl;}
    	return 0;

  2. #2
    Registered User
    Join Date
    May 2010
    If checkAmount == 43 then the first if(checkAmount < 20) will not execute but since 43 > 20 the next if statement will execute and the rest of the statements will be skipped. You may want to rearrange your else if clauses. Maybe switch the >= 20 with >= 60.


  3. #3
    C++ Witch laserlight's Avatar
    Join Date
    Oct 2003
    Consider input such that checkAmount = 70. Then, trace the flow of control of the program, line by line. What do you observe?
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  4. #4
    Registered User
    Join Date
    Sep 2011
    The question says:

    A bank charges $10 per month plus the following check fees for a commercial checking account:
    $0.10 each for fewer than 20 checks
    $0.08 each for 20-39 checks
    $0.06 each for 40-59 checks
    $0.04 each for 60 or more checks

    write a program that asks for the number of checks written during the past month, then computes and displays the bank's fees for the month.

  5. #5
    Registered User
    Join Date
    Sep 2011
    never mind I finally figured it out. Thanks to all that helped (:

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. strcmp problem, whats the problem, i cant figure it out!
    By AvaGodess in forum C Programming
    Replies: 14
    Last Post: 10-18-2008, 06:45 PM
  2. Replies: 4
    Last Post: 10-16-2008, 07:30 PM
  3. sturct/pointer problem, and fscanf problem
    By hiphop4reel in forum C Programming
    Replies: 6
    Last Post: 07-28-2008, 09:40 AM
  4. Visual Studio Linker problem or my problem?
    By OOPboredom in forum C Programming
    Replies: 2
    Last Post: 04-13-2004, 12:32 AM
  5. syntax linked list problem & struct problem
    By beely in forum C Programming
    Replies: 5
    Last Post: 11-11-2002, 09:14 AM