In functional programming, we think in terms of functions. While Object Oriented programming abstract over data, functional programming abstract over behavior. Instead of data, stateless functions are be passed across the code. 

Lambda expressions are Java's way of doing functional programming. Lambda expressions in computer science are anonymous functions: a function (or a subroutine) defined, and possibly called, without being bound to an identifier.

​

Problem

Given a binary tree, find out if it is a binary search tree or not.

Approach 1ddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Git is a Distributes Version Control System for tracking changes in computer files and coordinating work on those files among multiple people.

It is primarily used for source code management in software development,[8] but it can be used to keep track of changes in any set of files. 

This page contains a set of basic exercises that you need to complete along with your beginning Java notes. Exercises are divided into topics similar to the topics mentioned in the multiple choice questions. Practice these alongside reading notes and answering the multiple choice questions.

JPA 1 - Module 1: Java Essentials

Notes: https://javajee.com/book/java-101-getting-started-with-java

This is a quick summary of important annotations in Spring for doing core tasks in Spring. Some of them might have already been covered in examples. Some of them might be covered later. Some of them might be a variation of the already covered ones, so please feel free to try them out and let us know if you face any issues.

@Configuration, @Bean

You can use @Configuration to specify a Java configuration file.