am trying to write a c++ program that does the following:

1.reads five decimal numbers into a file "input.txt"
2.writes the five numbers from the file into an ouput file "output.txt"
3. calculates the sum of the five decimal numbers.
4. calculates the average of the five decimal numbers.
5. writes the sum and average into the file "output.txt"

help this extremely urgent....i can do the calculations its just the i/o stuff,

Question

am trying to write a c++ program that does the following:

1.reads five decimal numbers into a file "input.txt"
2.writes the five numbers from the file into an ouput file "output.txt"
3. calculates the sum of the five decimal numbers.
4. calculates the average of the five decimal numbers.
5. writes the sum and average into the file "output.txt"

help this extremely urgent....i can do the calculations its just the i/o stuff,

anonymous · Answer

include the library fstream and then start with your assignment , file i/o is just like the console i/o ,with the difference of syntax.

anonymous · Answer

it will help you http://www.hotscripts.com/forums/c-c/17981-reading-writing-files-c.html http://www.cplusplus.com/doc/tutorial/files/ read from here for file I/O . good luck :-)