In this post we show Java Bean Validation example! Bean Validation is fantastic and flexible library that can be used in JEE and JSE programs to verify data!
java.lang.InterruptedException is thrown when a Thread blocked in Object.wait(), Thread.join(), or Thread.sleep() is interrupted. Here we’ll look at these cases.
java.lang.IllegalMonitorStateException form Object’s notify/wait methods indicates basic synchronization issue. In this post we’ll show the reason and how to fix it!
In this post we show how to implement GCD in Java using Euclidean Algorithm. GCD is known as Greatest Common Divisor/Factor/Measure, Highest Common Divisor/Factor.
We show how to remove duplicates from List in Java. Choose implementation depending on circumstances and with expected performance.
Until Java 7 there was no simple and effective way to generate random numbers concurrently. Here we show ThreadLocalRandom to generate random numbers in a thread-safe way.
Quicksort is one of the fastest sorting algorithms. In this article we implement Quicksort in Java, describe how it works and its properties.
Java 8 regular expressions have been improved with names for capturing groups. In this post we show how to used them to improve Java code maintainability!
In Java 8 remove selected item from Collection? It can be done in at least two ways both of which we are going to implement here. Let’s code!
One way to prevent concurrent modifications from different Threads is to given them their own local data. Java ThreadLocal allows to do thread data separation.