7/29/2019 59742000 Creating a Program

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Creating a Program

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on 28 September, 2009 - 11:13

PROGRAMA Program is a set of instructions used to achieve the desired output.

To create new program or to edit the existing one.MODI COMMOR MODIFY COMMAND

NOTE command

If ignore the particular line or command, NOTE can be used at the beginning of

that line.

Comment Line

To add comments to the right of the Programming code , use &&Clear All Command

This command is used to closes all databases files and releases all active memoryvariables, arrays menus or popup.

Input / Output command

? | ?? | ??? [expr1?]? - To print the expression in new line

?? - To print the expression in the same line

??? - The Output will going to the printer

Example:

? "Hellow!"

Sample ProgramNOTE prg for just print something on the screenClear && To Clear the Screen or previous outputs

?"Welcome"

?"Hellow!"?? " World...!"

??? "Thank you

Writing Programs* FoxPro has powerful built-in editor for writing and editing.

* It can be invoked from the command window by using the MODIFY COMMAND.

Syntax:

MODIFY COMMAND

Example:

Modify Command journal

(This program will automatically save with the extension .PRG)Press CTRL + W - To save and close the program window

Executing Program

Programs can be executed by DO command.

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Syntax:

DO

Example:Do journal

When compile the executed file the FoxPro creates an object code program with .FXP

extension. If there are any errors, creates a file an .ERR extension.INPUT commandIt is used to accept Numeric input from the user and store it into a memory variable.

Syntax:INPUT [] TO

Example:

Store 0 to eno

INPUT "Enter your Enrollment No : " TO eno

? Eno

ACCEPT commandIt is used to accept character input from the user and store it into a memory variable.

Syntax:ACCEPT [] TO

Example:Store space (15) to NAM

ACCEPT "Enter the Name: " to NAM? "Entered name: NAM

Example 2clearSET TALK OFF

Accept "Enter your nane :" to nam

Input "enter your Age : " to age

Accept " enter your city :" to citAccept "Enter your Mail id : " to mail

? "******************************************"

? "NAME :: " ,nam? "AGE :: " ,age

? "CITY :: " ,cit

? "MAIL ID:: " ,mail? "******************************************"

Setting/restoring the environmentEvery FoxPro program includes all commands required to establish the working

environment and restore it to its prior state before the program terminates execution. This

is achieved by issuing some set.

Set notify on/off

Enables the display of certain system messages.

Set talk windowDirectors the display of system messages to an user-defined window instead of

the system window. Sets notify should be ON.

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Set deleted on/offProcesses records marked for deletion.