Let's understand the cause behind NoSuchFieldError and how to resolve it.

Learn about a few tools that we can use to import certificates in .cer format into the client's truststore

See how to implement the Singleton Design Pattern in plain Java.

Some programming languages provide easy ways to return multiple values from a method. In Java, there are a few similar options, depending on the types.

A quick and practical guide to summing numbers with Java Stream API.

A quick overview of basic terms associated with the security context.

See how to create a Smart Contract and interact with it using Java.

Learn different ways of iterating through the entries of a Map in Java.

Have a look at the UnsupportedOperationException and how to avoid it when working with lists in Java.

A quick and practical overview of Class.isInstance and Class.isAssignableFrom methods.

Learn several approaches for finding the kth largest element in a set of unique numbers using Java.

Learn how to implement AES encryption and decryption using the Java Cryptography Architecture.

This article describes how we may get the current date, current time and current time stamp in Java.

Learn the concepts around servlets, their containers, and a few essential objects they revolve around.

A quick guide to converting a byte array to a Writer using Java, Guava or Commons IO.

Learn how to use Java's dynamic proxies - one of the primary proxy mechanisms available in the language.

Learn how to determine if a Java String contains all of the letters in the alphabet

In my last post, I described the day period support added with JDK 16 Early Access Build 25. That same build also added methods for checking indexes and

Every now and then I jump on classes with multiple constructors or classes that are rigorous to work with. Let alone not being able to mock part of their