Learning Blockchain In Java

This book is for anyone who is interested in learning or understanding blockchain technology through step-by-step programming. The ideal readers would be those with basic Java programming knowledge (either beginners or intermediate) as this book shows how to develop a preliminary blockchain system in Java. You may have wondered what blockchain is and how it works, and you may have heard of mining and wallet. There are quite a few books available out there talking about them. When you read those books, you may develop pieces of understanding here and there. Well, we know that learning by doing is the best education approach, which is what this book offers. In this book, each chapter begins with an explanation of blockchain concepts before moving on to discuss relevant Java programs that implement those concepts. You will accumulate knowledge via hands-on experience in code-writing and learn several versions of blockchain systems. The book includes all required source codes, which are also available online. After reading and practicing along with the book, you are ready to go as a blockchain developer.One advantage of this book is that no third-party software packages are required to follow along with the tutorials - everything explained in this book can be accomplished with OpenJDK, and the sample codes are written entirely in Java. The book is divided into multiple chapters with succeeding chapters building upon the concepts reviewed in previous chapters. However, each chapter covers inherently different material and so they can also be taken independently. The last chapter discusses the importance of secure coding and concludes the book with case studies of several malicious attacks that had occurred in the cryptocurrency world.

This book is for anyone who is interested in learning or understanding blockchain technology through step-by-step programming. The ideal readers would be those with basic Java programming knowledge (either beginners or intermediate) as this book shows how to develop a preliminary blockchain system in Java. You may have wondered what blockchain is and how it works, and you may have heard of mining and wallet. There are quite a few books available out there talking about them. When you read those books, you may develop pieces of understanding here and there. Well, we know that learning by doing is the best education approach, which is what this book offers. In this book, each chapter begins with an explanation of blockchain concepts before moving on to discuss relevant Java programs that implement those concepts. You will accumulate knowledge via hands-on experience in code-writing and learn several versions of blockchain systems. The book includes all required source codes, which are also available online. After reading and practicing along with the book, you are ready to go as a blockchain developer.One advantage of this book is that no third-party software packages are required to follow along with the tutorials - everything explained in this book can be accomplished with OpenJDK, and the sample codes are written entirely in Java. The book is divided into multiple chapters with succeeding chapters building upon the concepts reviewed in previous chapters. However, each chapter covers inherently different material and so they can also be taken independently. The last chapter discusses the importance of secure coding and concludes the book with case studies of several malicious attacks that had occurred in the cryptocurrency world.This is the second edition which also presents demonstration of three simple Peer-to-Peer network models.

Create your own crypto currency by implementing blockchain technology using Java. This step-by-step guide will teach you how to create a user interface using Java FX and implement SQLite DB using JDBC Driver for the blockchain. Introducing Blockchain with Java includes numerous exercises and test questions to help you solidify what you have learned as you progress through the book, and provides ideas on expanding the codebase to make it your own. You will have access to a fully-functioning repository with Java code. Upon completing this book, you will have the knowledge necessary to program your own blockchains with Java and you will have a completed project for your portfolio. What You Will Learn Know the most important theoretical concepts of the blockchain Code the blockchain in Java Create a user interface with JavaFX Implement SQLite DB using JDBC Driver Create a P2P multi-threaded app Create your own cryptocurrency app with full functionality Implement blockchain technology on a P2P network from scratch using Java, JavaFX, and SQL Who This Book Is For Anyone with a basic level knowledge of: Java or similar object-oriented programming language, FXML or HTML or similar markup language, and SQL

Learn practical uses for some of the hottest tech applications trending among technology professionals We are living in an era of digital revolution. On the horizon, many emerging digital technologies are being developed at a breathtaking speed. Whether we like it or not, whether we are ready or not, digital technologies are going to penetrate more and more, deeper and deeper, into every aspect of our lives. This is going to fundamentally change how we live, how we work, and how we socialize. Java, as a modern high-level programming language, is an excellent tool for helping us to learn these digital technologies, as well as to develop digital applications, such as IoT, AI, Cybersecurity, Blockchain and more. Practical Java Programming uses Java as a tool to help you learn these new digital technologies and to be better prepared for the future changes. Gives you a brief overview for getting started with Java Programming Dives into how you can apply your new knowledge to some of the biggest trending applications today Helps you understand how to program Java to interact with operating systems, networking, and mobile applications Shows you how Java can be used in trending tech applications such as IoT (Internet of Things), AI (Artificial Intelligence), Cybersecurity, and Blockchain Get ready to find out firsthand how Java can be used for connected home devices, healthcare, the cloud, and all the hottest tech applications.

Learn practical uses for some of the hottest tech applications trending among technology professionals We are living in an era of digital revolution. On the horizon, many emerging digital technologies are being developed at a breathtaking speed. Whether we like it or not, whether we are ready or not, digital technologies are going to penetrate more and more, deeper and deeper, into every aspect of our lives. This is going to fundamentally change how we live, how we work, and how we socialize. Java, as a modern high-level programming language, is an excellent tool for helping us to learn these digital technologies, as well as to develop digital applications, such as IoT, AI, Cybersecurity, Blockchain and more. Practical Java Programming uses Java as a tool to help you learn these new digital technologies and to be better prepared for the future changes. Gives you a brief overview for getting started with Java Programming Dives into how you can apply your new knowledge to some of the biggest trending applications today Helps you understand how to program Java to interact with operating systems, networking, and mobile applications Shows you how Java can be used in trending tech applications such as IoT (Internet of Things), AI (Artificial Intelligence), Cybersecurity, and Blockchain Get ready to find out firsthand how Java can be used for connected home devices, healthcare, the cloud, and all the hottest tech applications.

Simplicity is the glory of expression. - Walt WhitmanThis book is designed to keep in mind both technical and non-technical people. The book covers Business purpose, Technology and Investment aspect of Blockchain. Core concepts of Blockchain, Bitcoin and Ethereum are explained in layman's term. Also for a programmer, there is no better learning then build your own solution. Keeping this in mind, a proof of concept implementation of blockchain is done using Java. The coding exercise cover the step by step implementation of key concepts like block creation, Hash (digital signature) generation of block, Proof of Work ,Mining, Wallet creation ,Transaction between 2 wallet etc

Discover the advanced features of Solidity that will help you write high-quality code and develop secure smart contracts with the latest ERC standards Key FeaturesDelve into Solidity and understand control structures, function calls, and variable scopesExplore tools for developing, testing, and debugging your blockchain applicationsLearn advanced design patterns and best practices for writing secure smart contractsBook Description Solidity is among the most popular and contract-oriented programming languages used for writing decentralized applications (DApps) on Ethereum blockchain. If you’re looking to perfect your skills in writing professional-grade smart contracts using Solidity, this book can help. You will get started with a detailed introduction to blockchain, smart contracts, and Ethereum, while also gaining useful insights into the Solidity programming language. A dedicated section will then take you through the different Ethereum Request for Comments (ERC) standards, including ERC-20, ERC-223, and ERC-721, and demonstrate how you can choose among these standards while writing smart contracts. As you approach later chapters, you will cover the different smart contracts available for use in libraries such as OpenZeppelin. You’ll also learn to use different open source tools to test, review and improve the quality of your code and make it production-ready. Toward the end of this book, you’ll get to grips with techniques such as adding security to smart contracts, and gain insights into various security considerations. By the end of this book, you will have the skills you need to write secure, production-ready smart contracts in Solidity from scratch for decentralized applications on Ethereum blockchain. What you will learnTest and debug smart contracts with Truffle, Ganache, Remix, and MetaMaskGain insights into maintaining code quality with different toolsGet up to speed with ERC standards such as ERC-20 and ERC-721Become adept at using design patterns while writing smart contractsUse MultiSignature (MultiSig) wallets and improve the security of contractsUse Oracle services to fetch information from outside the blockchainWho this book is for This book is for developers and data scientists who want to learn Ethereum, blockchain, and Solidity to write smart contracts and develop production-ready code. Basic knowledge of Solidity is assumed.

All blockchain books combined in a single bundle. Four books, four times the value! Book 1: Blockchain is an often-misunderstood technology. It has been a hype, a thing in the past, and many people are talking about it. But what is it? How do you use it? What consequences does it have? All of these questions and more will be answered in this book. The expert/author wrote, among others: How blockchain is different from bitcoin (and similar to it). The domino effect blockchain causes on banks, institutions, corporations, and governments. Contracts, apps, and financing strategies to utilize blockchain to your advantage. Elaborate and controversial thoughts about the development and future of blockchain. Legal implications and economical effects of blockchain. Barriers and challenges, as well as simple ways to overcome those. Book 2: The more sophisticated specifics of blockchain programming will be discussed in this book. You will read about things you might not have encountered yet and expand your knowledge about this popular way of using software and ethereum to achieve monetary and accuracy purposes. You will read, among others: What ethereum is and how to use it. Login systems that use ethereum. Several ways of understanding how bitcoin is related to it all, and the concept behind it. All about smart contracts and storing data. Java coding that involves blockchain technology. Facts and thoughts about the Decentralized Autonomous Organization (DAO). And much more! Book 3: You've learned the specifics of blockchain technology. You've become the ultimate expert geek on this subject. You've read my other books, and you know how it all works. So now what? Well, now it's time for you to apply these things in real life. That's why I added this book to the series to show you, for instance: The recent blockchain developments and how to stay up-to-date. What ethereum is and how to use it. The shifts in the industry and the kinds of employers who need people like you. How blockchain technology influences the cyber security systems, music industry and gaming industry. Threats to the system and the programming methods. All about investing, supply chains, and more. Book 4: A different angle... a different twist to the elaborate uses of blockchain technology you should know more about! Added to the previous books I've written, I felt inspired to increase your expertise in this particular area and share my knowledge with the world. In this guide, you can learn about: Ethereum and the connection to the Decentralized Consensus Network. The basics of DAPP. Javascript API specifics related to blockchain technology. Methods to contract storage. Alethzero and other software specifics. Coding, typing, and data values you need to understand. Transactions, pulling data, and structuring.