Hello World in COBOL
Every programming journey starts with Hello World. Let’s write our first COBOL program using modern free-format syntax with GnuCOBOL.
The Code
Create a file named hello.cob:
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Cobol
Why 0.1 + 0.2 ≠ 0.3: How Programming Languages Handle Numbers Differently
Open your browser’s developer console right now and type 0.1 + 0.2. Go ahead, I’ll wait.
You expected 0.3, didn’t you? Instead, you got:
0.30000000000000004
This isn’t a …
Read more →The Oldest Programming Languages Still in Production Use
Somewhere right now, a FORTRAN program written in the 1970s is predicting tomorrow’s weather. A COBOL system is processing your credit card transaction. A Lisp-based AI is helping plan a …
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