In this article we present practical Bean Validation Unit Testing using JUnit. Testing this part is very simple, yet often neglected by many developers. Let’s fix that!
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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!
Continue reading Java Bean Validation examplejava.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.
Continue reading java.lang.InterruptedExceptionjava.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!
Continue reading Java IllegalMonitorStateExceptionIn 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.
Continue reading GCD in Java using Euclidean AlgorithmWe show how to remove duplicates from List in Java. Choose implementation depending on circumstances and with expected performance.
Continue reading Remove duplicates from List in JavaUntil 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.
Continue reading Generate random numbers concurrently – ThreadLocalRandomQuicksort is one of the fastest sorting algorithms. In this article we implement Quicksort in Java, describe how it works and its properties.
Continue reading Quicksort in JavaJava 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!
Continue reading Java 8 regex match group – named capturing groupsIn 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!
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