C++ :: Creating Invoice In Console Window
Apr 24, 2013
I am writing a program for my beginning c++ class. It is supposed to create an invoice in the console window. so far, everything is working perfectly, except for one thing. My invoice comes out looking like this:
696.60 - 27 Adult Meals at $25.80 each.
+ 46.44 - 3 Child Meals at $15.48 each.
--------
743.04 - Total Cost of All Meals (Add the above numbers together)
+ 52.01 - Weekend Surcharge (743.04 x .07)
+143.11 - Tax/Tip ((743.04 + 52.01) x .18)
--------
938.16 - Total Party Cost
- 57.50 - Deposit Received
--------
880.66 - Balance Due
- 32.84 - 3.5% Prompt Payment Discount (938.16 x .035)
--------
847.83 - Balance Due (If Paid Within Ten Days)
The problem is that if I add these numbers on a calculator, I get as result of $847.82, not $847.83. I checked them individually and they are all being rounded properly. If I add them up using the entire decimal value of the calculations, rather than the truncated value, I get $847.83.
So, the question is as follows: In C++, how do I do each calculation, round the answer to 2 decimal places, then use only the rounded number in the next calculation?
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Oct 28, 2013
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Dec 17, 2011
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Then I replaced all the instances of Console.Write with Trace.Write.
The data displayed as expected on the console. But on the text file the info was printed in the same order the info was outputted to the Console. ie: all the characters used to separate rows lumped together, followed by all the characters used to separate columns lumped together, followed by the actual data that was printed between those characters, all lumped together.
I can see why I ended up with this mess. The TextWriter is oblivious of the fact that the Console's cursor position was arbitrarily modified by the application code before and after each character and piece of data was printed to the Console.
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Jun 13, 2013
what i got so for my code.
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int refreshDisplay(int , int);
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[code]....
count <<" The oblective of the game is for the player to move around a 2 dimensional playing field and capture the star withought falling into a black hole or walking off the edge of the playing field. The controls are W = up S= down A=Left D=Right" <<endl; how implement 3 black hole X characters and 2 wormhole characters on field @ and a star *. all these char has to be randomly generated.
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//file name : sort_array_of_structure.c
Code:
/*Write a program to accept records of the different states using array of structures. The structure should contain char state, population, literacy rate, and income. Display the state whose literacy rate is highest and whose income is highest.*/
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[code]....
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Sep 5, 2013
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[Code] ....
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[Code] ....
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