Community driven content discussing all aspects of software development from DevOps to design patterns. There are several ways to find duplicates in a Java List, array or other collection class. The ...

Q: Does Java have an operator like sizeof() in C? A: A superficial answer is that Java does not provide anything like C’s sizeof(). However, let’s consider why a Java programmer might occasionally ...

Method references are a shorthand way to write lambda expressions that call a single method. Rather than implementing a method in a functional interface, a method reference simply points to an ...

The Java Iterator is an all-purpose interface that simplifies looping through a collection of objects. Java's ListIterator provides all the functionality of the Iterator interface, with four ...