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Question: How could Java classes direct program messages to the system console, but error messages, say to a file?

Answer: By default, both System console and err point at the system console.
The class System has a variable out that represents the standard output.
The variable err that represents the standard error device.
Stream st = new Stream (new FileOutputStream ("withoutbook_com.txt"));
System.setErr(st);
System.setOut(st);

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How could Java classes direct program messages to the system console, but error messages, say to a file?
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Question: How could Java classes direct program messages to the system console, but error messages, say to a file?

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