Top 10 Tips on Logging in Java - Tutorial

Top 10 Tips on Logging in Java - Tutorial

Top 10 tips on logging in Java

In this java logging tutorial I have shared my experience with logging in Java, I have tried to answer fundamental questions on java logging like "Why we need logging in Java", "What are different logging level in Java and how to choose correct logging level in java", "How incorrect java logging affect performance" and discussed the tools, libraries and API available for logging in Java e.g. log4j.jar and java.util.logging package.

Why we need logging in Java

This is pretty basic java logging question and everybody argue that if we Java System.out.println() for printing messages then whey we use logging. Everybody who starts java starts with System.out.println() for printing message in java console. But this is not at all powerful as compared to advanced Java logging API like log4j and java.util.logging. If you are writing a java application server then only way to know what your server is doing is by seeing log file of your server. suppose you don't write anything in your java log file then no body knows what your sever is doing, it becomes increasingly important if your application is connected to upstream and downstream like in many stock trading systems or electronic trading system and get input from upstream , transforms and normalize it and send down to downstream. In case of any issue without java logs you won't be able to figure out what went wrong. That's why logging in java is most important while writing any Java server application. Logging in Java is not by choice it's must to understand

Read full article from Top 10 Tips on Logging in Java - Tutorial