Book Image

Java 9 Data Structures and Algorithms

By : Debasish Ray Chawdhuri
Book Image

Java 9 Data Structures and Algorithms

By: Debasish Ray Chawdhuri

Overview of this book

Java 9 Data Structures and Algorithms covers classical, functional, and reactive data structures, giving you the ability to understand computational complexity, solve problems, and write efficient code. This book is based on the Zero Bug Bounce milestone of Java 9. We start off with the basics of algorithms and data structures, helping you understand the fundamentals and measure complexity. From here, we introduce you to concepts such as arrays, linked lists, as well as abstract data types such as stacks and queues. Next, we’ll take you through the basics of functional programming while making sure you get used to thinking recursively. We provide plenty of examples along the way to help you understand each concept. You will also get a clear picture of reactive programming, binary searches, sorting, search trees, undirected graphs, and a whole lot more!
Table of Contents (19 chapters)
Java 9 Data Structures and Algorithms
About the Author
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A problem with recursive calls

A problem with recursive calls is that they are expensive; a method invocation entails considerable overhead on the processor. It is, in general, better to avoid invoking methods if you want to improve performance to the last bit. On top of that, there is a limit to the depth of function calls that you can go to, before the program breaks. This is because a program has a stack to enable method invocation semantics, that actually gets a new element containing all variables and the position of the current instruction to the stack. This stack does not grow indefinitely, but instead is fixed in size; usually, it can hold a few thousand values, which means that if your method invocation is deeper than that, it will break and the program will exit with an error. This means that our insertion sort will break for an array containing more than a few thousand entries. On the other hand, it is generally easier to explain an algorithm in a functional form. To balance between...