Write all System.out into a file
java, java.util.logging, logging, system.out
Solution
What about `System.setOut(PrintStream)` ? You could insert this call in the initialization part of your program (start-up).
Was previously a commment:
And of course you can do the same with System.err - namely System.setErr(PrintStream), but better to a different file stream.
In detail assuming an autoflushing appending and buffered file stream:
String file = ...;
PrintStream ps =
new PrintStream(true, new BufferedOutputStream(new FileOutputStream(file, true)));
System.setOut(ps);
Problem
I have a large program in which I have used System.out for debugging. But I'd like to be able to log all System.out simultaneously to a file so even if my program isn't run in the console all the System.out will be written to a file and I will be able to see it in any moment the program is running or later. Btw, it's not wise to crawl all the program and use a logger instead of System.out statements! I tried `java -jar myjar.jar > sysout.txt` but it doesn't log the exceptions logged by java logger utility.