Programming Logic and Design

Question

1. What is File in programming?

2. Create your own sample pseudocode implementing File handling

3. What is Menu Driven Program

4 Create your own sample pseudocode implementing Menu where user can input a choice and the program will execute the chosen option.

Answer 1

1) File stores data on the disk;

THe data can be input into a program OR/And

can be the output results of another program

2) File_handle = OPEN_FILE(filename,file_mode);

if file_handle is valid

while not end of datafile

read/write the record

process the record

store the record in the array

end while

closes the file

endif

3) menu driven:

the list of available actions is displayed

in the menu, a NUMBERED LIST

user/operator selectes the action to perform

by inputting the integer value corresponding

to the action to be performed

other input is gathered

corresponding action performed

results and output returned to use

EX>

Menu

(+) ADD

(-) SUBTRACT

(*) MULTIPLY

(/) DIVIDE

input the math operation followed by the numbers

ex. * 4 5

output 20

ex. + 9 8

output 17

ex. - 12 7

output 5

ex. / 15 3

output 5

ex. / 5 0

ERROR DIVIDE BY ZERO