Core Java
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Java Exception: java lang NoSuchMethodError
If you have a look at the error message java.lang.NoSuchMethodError you may understand that the Java Virtual Machine is trying…
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Memory Access Patterns Are Important
In high-performance computing it is often said that the cost of a cache-miss is the largest performance penalty for an…
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Java 8: Testing the Lambda Water
Java 8 is about a year away and comes with a language feature I really look forward to: Lambda Expression.…
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Java Executor Service Types
ExecutorService feature was come with Java 5. It extends Executor interface and provides thread pool feature to execute asynchronous short…
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Java Concurrency – CyclicBarrier Example
CyclicBarrier in Java is a synchronizer introduced in JDK 5 on java.util.Concurrent package along with other concurrent utility like Counting…
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Hash Length Extension Attacks
In this post I will try to leave the summer slump behind and focus on more interesting things than complaining…
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String memory internals
This article is based on my answer on StackOverflow. I am trying to explain how String class stores the texts,…
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IO vs. NIO – Interruptions, Timeouts and Buffers
Let’s imagine a system that sometimes needs to copy a file to a few locations, but in a way where…
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Solve design problems using Factory Pattern
Factory design pattern is one of the most commonly used patterns in object oriented environment. It is again from the…
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