log4j is a logging framework for the Java programming language.
log4j log levels
| Level | Description |
| FATAL | Panics. Things to print when the program is crashing. |
| ERROR | Exceptions, assertions etc. |
| WARN | Warnings, suspicious conditions etc. |
| INFO | |
| DEBUG | |
| TRACE | Verbose logs. |
Citation
If you find this work useful, please cite it as:
@article{yaltirakli,
title = "Log4j",
author = "Yaltirakli, Gokberk",
journal = "gkbrk.com",
year = "2025",
url = "https://www.gkbrk.com/log4j"
} Not using BibTeX? Click here for more citation styles.
IEEE Citation Gokberk Yaltirakli, "Log4j", October, 2025. [Online]. Available: https://www.gkbrk.com/log4j. [Accessed Oct. 30, 2025].
APA Style Yaltirakli, G. (2025, October 30). Log4j. https://www.gkbrk.com/log4j
Bluebook Style Gokberk Yaltirakli, Log4j, GKBRK.COM (Oct. 30, 2025), https://www.gkbrk.com/log4j