If you need to add your own logging level in Log4j, then you can do it as follows. You will have to create your own class which will extend from Level.
Log4j is a simple and flexible ...
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Java & J2EE Archives...
One of my favorite language Java is a programming language and computing platform developed by Sun which is acquired by Oracle now. J2EE is Java Enterprise Edition, which consists of core Java with a powerful set of libraries.
On Crunchify, we do have more than 400+ Java and J2EE tips with additional production ready utilities. Explore all tutorials below.
Java Method Hiding and Overriding: Override Static Method in Java
Want to learn Fundamental of Instance Method?
In Java, an instance method in a subclass with the same signature and return type as an instance method in the superclass overrides the ...
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In Java How to Implement Merge Sort Algorithm? Detailed Explanation and Complete Example
On Crunchify, we have written so far 400+ Java and Spring MVC technology related tutorials. Learning new stuff never bored me. I like learning new stuff every day and I believe it's the same ...
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What is Java Synchronized Collections? Complete Tutorials using java.util.Collections
Java Collection Framework is one of the most used section. There are more than 100 APIs are available for us to use at finger tips.
synchronizedMap() returns a synchronized (thread-safe) ...
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Best Way to Append Data to File in Java – Apache commons.io.FileUtils and java.io.BufferedWriter Approach
What is the best way to append live data to a file in Java? It's very easy for developer to print output or some debug data to Eclipse Console using println(). But what if you would like to ...
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Log File Tailer (tail -f) implementation in Java – Best way to tail any file programmatically
File operations using Java are my favorite part. There are number of tutorials you may have seen on Crunchify like append data to file, read data from file, read and parse JSON file, read ...
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In Java How to Find List of all Class Names from inside .jar File? – Jar Class Finder Utility with Java Reflection
This tutorial will be very interesting. Last week I was working on a Java Project which requires me to have list of Classes from .jar file. With the help of ...
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Java: Producer Consumer Example – Handle Concurrent Read/Write
The producer-consumer problem (also known as the bounded-buffer problem) is a classic Java Example of a multi-process synchronization problem.
The problem describes two processes, the ...
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Java: How to Get Random Key-Value Element From HashMap
Is there a way to get the value of a HashMap randomly in Java? Of Course, below is a simple Java Code which represents the same.
Also, at the end of program there is a bonus code to ...
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