May 2023
Intermediate to advanced
416 pages
8h 17m
German
Content preview from COBOL - Altsysteme warten und erweiternBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Kapitel 7: Die Anweisungen ACCEPT, DISPLAY und STOP
Dieses Kapitel beschäftigt sich zunächst mit zwei Anweisungen für die simple Ausgabe und Eingabe von Daten. Auch in modernen Programmiersprachen hat man die Möglichkeit, kurze Informationen in Textform auf die Standardausgabe zu schreiben. In COBOL dient dazu die Anweisung DISPLAY. Sie wurde für PC-Systeme so erweitert, dass man ganze Masken auf einem Textbildschirm anzeigen kann. Für die Dateneingabe in solche Masken steht die ACCEPT-Anweisung zur Verfügung. In ihrer einfachsten Form liest diese Anweisung den eingegebenen Text aus der Standardeingabe.
Ein COBOL-Programm beginnt mit der ersten Anweisung nach PROCEDURE DIVISION und läuft dann sequenziell durch den Programmcode, bis am Ende die ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.