Platform for Object Oriented and Functional Programming Concepts

1. Overview In this article, we will look at 2 different methods of Optional class. These methods are helpful in taking an action on value, […]

Optional Static Factories 1. Overview In this article we will discuss 3 different ways to create Optional object. Java has provided us with 3 different […]

1. Overview In this article we will look at Files class’s find method. find() method returns the content of directory passed in parameter based on […]

1. Overview In this article we will look at Files class’s walk method. walk() method returns the content of directory passed in parameter. The contents […]

1. Overview In this article we will look at Files class’s list method. list() method returns the content of directory passed in parameter. The contents […]

1. Read all lines of the file lazily lines() method allows us to read file line by line lazily i.e. It returns Stream<String>. 2. lines() […]

1. readAllLines method Method signature readAllLines method is an overloaded method in Files class. Let’s first see the method version that added prior to Java […]

1. Introduction In this article we will learn how to use newBufferedReader and newBufferedWriter method that was introduced in Files class in Java 8. There […]

1. Overview Empty collections indicate that the collection does not have any values in it. All the empty collections are immutable which means once created […]

1. Introduction In previous article I discussed Tuple is an immutable collection or finite list of elements of same or different types. In this article, […]

1. Introduction In this article, we will explore what is and how to write a Tuple in Java. Tuple is an immutable collection or finite […]

1. Introduction This is third article in Java Generics. In previous articles I discussed about Introduction to Java Generics and cast guarantee provided in Generics. […]

Immutable objects are those objects that cannot be modified once created. Please read the first article in Immutable Objects series to understand what advantages are […]

Let me start this article by quoting Brain Goetz. Immutable objects are simple. They can only be in one state, which is carefully controlled by […]

1. Introduction java.util.Collections class is static utility class which contains polymorphic algorithms, static factories and wrapper methods. It also contains several other interesting methods. All […]

1. Introduction In previous article I wrote about Introduction to Java Generics. In this article we will see what cast guarantee is. Cast guarantee mean […]

1. Introduction Generic programming means a code is written in terms of type which can be specified later and those types can be used as […]

1. Introduction In previous few articles we have seen how not to use Optional and explored few areas by refactoring code in better way rather […]

This article is going to very interesting as we will explore several different ways on how to sort a HashMap using keys. 1. Introduction Usually […]