Aspects


vs


Stderr

The standard error output stream (stderr) is typically used by a program to output error messages or diagnostics.

Stdout

The standard output stream (stdout) is the stream where a program writes its output data.

Others

Quality Example
Better

"Stderr is better than stdout for errors for a couple of reasons"

from question "Command line utility: how to make it right?"

More control

"In other words instead of mis-using stderr like this - look into ways to gain more control over stdout"

from question "Difference in Processing of System.err.print ans System.out.print"

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