Logging System.out.println Results in a Log File Example

Date: 2017-07-31

This tutorial demonstrates redirecting Java's System.out.println() output to a log file using Log4j. It explains that while System.out.println() is convenient for simple debugging, Log4j offers superior features like flexibility, improved message quality, and better performance, especially for large applications or server-side deployments. The tutorial walks through setting up a Log4j configuration file (log4j.properties) to route log messages to a file, detailing the project setup in Eclipse and providing example code. System.out.println()'s performance limitations are also discussed. Using Log4j allows for centralized log management and control without modifying source code.

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