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Java™ for COBOL Programmers, Third Edition by John C. Byrne

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10 I/O in Java

Input and output usually play a big role in COBOL batch programs, especially in legacy systems. I/O operations are considerably different in Java than they are in COBOL, yet it is possible to do most of the same things in Java as you would in COBOL. If you find yourself working on a Java enterprise application, you will be doing very little traditional file I/O because such systems are usually built utilizing database technologies. Most Java applications use database technologies even when they are single-user systems. Nevertheless, I/O plays a much broader ...

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