JDK Tutorials - Herong's Tutorial Examples - v6.32, by Herong Yang
Java Logging
This chapter provides tutorial on Java Logging. Topics include introduction of Logger, LogManager, Handler, Formatter classes; Logger parent and tree; ConsoleHandler and FileHandler; SimpleFormatter and XMLFormatter; using logging configuration files.
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What Is Java Logging
java.util.logging.Logger - The Logging Channel
java.util.logging.LogManager - The Logging Manager
Logger.setParent() - Logger Tree
Log Message Severity Level Hierarchy
java.util.logging.Handler - Log Message Handler
java.util.logging.Formatter - Log Message Formatter
-Djava.util.logging.config.file - Logging Configuration
com.herongyang.* Classes with Separate Loggers
*.level=ALL - Log All Levels with Configuration File
FileHandler.pattern=java_%u.log - Log to Files
Logger.handlers=...,... - Add Multiple Handlers
Takeaways:
Table of Contents
Date, Time and Calendar Classes
Date and Time Object and String Conversion
Number Object and Numeric String Conversion
Locales, Localization Methods and Resource Bundles
Calling and Importing Classes Defined in Unnamed Packages
HashSet, Vector, HashMap and Collection Classes
Character Set Encoding Classes and Methods
Encoding Conversion Programs for Encoded Text Files
Datagram Network Communication
DOM (Document Object Model) - API for XML Files
DTD (Document Type Definition) - XML Validation
XSD (XML Schema Definition) - XML Validation
XSL (Extensible Stylesheet Language)
Message Digest Algorithm Implementations in JDK
Private key and Public Key Pair Generation
PKCS#8/X.509 Private/Public Encoding Standards
Digital Signature Algorithm and Sample Program
"keytool" Commands and "keystore" Files
KeyStore and Certificate Classes
Secret Key Generation and Management
Cipher - Encryption and Decryption
The SSL (Secure Socket Layer) Protocol
SSL Socket Communication Testing Programs