Any one explain what the DISPLAY will do in PL/I

spriya · New User Joined: 06 Oct 2005 Posts: 42

hi

Any one explain what the DISPLAY will do in PL/I

ex

Call display('error time-'|etime);

here display is proc name or syntax pls explain the example i give

ch.rajashekar1 · New User Joined: 05 Dec 2005 Posts: 4 Location: B'lore

The DISPLAY statement displays a message on the user's screen and optionally requests the user to enter a response to the message.

________________________________________________________________________
| |
| >>__DISPLAY__(expression)__ ___________________ __;_________________>< |
| |_REPLY__(char-ref)_| |
| |
|________________________________________________________________________|

expression Is converted, where necessary, to a character string. This character string is displayed. It can contain mixed character data. If the expression has the GRAPHIC attribute, it is not converted.

REPLY (char-ref) Specifies a character reference that receives the user entered response. The response can contain CHARACTER, GRAPHIC, or mixed data.

The REPLY option suspends program execution until the user enters a response.
If GRAPHIC data is entered in the REPLY, it is received as character data that contains mixed data. Such character data can be converted to GRAPHIC data using the GRAPHIC BUILTIN.

Cheers,
Raja Shekar ch