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 save data …
Java and J2EE Tutorials 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 600+ Java and J2EE tips with additional production ready utilities. Explore all tutorials below.
In Java How to Find Maximum Occurrence of Words from Text File?
In this Java tutorial, you will learn How to Find Maximum Occurrence of Words from given Text File? Here is a logic for getting top element: Create a class CrunchifyComparable that can …
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Java Properties Files: How to Update config.properties File in Java?
Properties files are a popular mean of configuring applications. Of course Commons Configuration supports this format and enhances significantly the basic java.util.Properties class. This …
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How to Create a Simple In Memory Cache in Java (Best Lightweight Java Cache)
High performance scalable web applications often use a distributed in-memory data cache in front of or in place of robust persistent storage for some tasks. In Java Applications it is very common to …
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How to get MD5 checksum for any given file in Java? How to use Apache Common’s DigestUtils.md5Hex utility?
Tighten the security of your enterprise application is the biggest challenge of any organization. Consider this actual production scenario: You have an application which reads the value from a …
Java NIO (Non-blocking I/O) with Server-Client Example – java.nio.ByteBuffer and channels.Selector – Java NIO Vs. IO
Java NIO is my favorite topic. I have been working with NIO since last 2 years and would like to share simple Server-Client code for my readers who are free to use this code in their production …
In Java How to make a File ReadOnly or Writable? How to create new file? How to check if file is Writable or not?
In Java how to make file Read only or Writable? Also, how to check if file is Writable or not? In this tutorial we will go over below different File …
Java Hashmap – containsKey(Object key) and containsValue(Object value) – Check if Key/Value Exists in Map
There are few concepts and technologies which comes by default with each and every programing language and Collection is one of them. Java Collection is a very big field. It comes with so many …
How to stop/kill long running Java Thread at runtime? timed-out -> cancelled -> interrupted states
Have you ever wondered how to kill long running Java thread? Do you have any of below questions? Kill/Stop a thread after certain period of time Killing thread after some specified time limit …