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BlockChain

 Blockchain Platform - Ethereum - Corda - Multichain - Quorum - Hyperledger Fabric Why blockchain - mainstream? Cross border monetary payment system - High transaction Fee - Double Spending - Internet fraud Benefits - Decreased Costs - Reduced Fraudulent activity - Increased Security Blockchain is a distributed database of uneditable records called blocks, which are secured using cryptography Blocks is a record book which contains the details of transaction data. Elements of Block - Hash - Hash of previous block - Nonce - Transaction Data Hash is an alphanumeric value which is used to identify a block. Nonce is a random value which is used to vary the value of hash.. Payments transparent  and accountable Oracle Blockchain Platform Set up a blockchain network Self sustaining nodes Share data with multiple parties Based on Industry's leading open source Hyperledger Fabric Advantages Immutability Data Integrity Simplifies Auditing Consensus Algorithms - Practical Byzantine fault ...
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Git and GitHub

 Step 0: Install git and create a GitHub account. ... Step 1: Create a local git repository. ... Step 2: Add a new file to the repo. ... Step 3: Add a file to the staging environment. ... Step 4: Create a commit. ... Step 5: Create a new branch. ... Step 6: Create a new repository on GitHub. Step 7: Push a branch to GitHub Step 8: Create a pull request (PR) Step 9: Merge a PR Step 10: Get changes on GitHub back to your computer Step 11: Bask in your git glory - https://training.github.com/
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API

 Representational state transfer (REST) is a software architectural style API API are also known as subroutines, methods, requests, or endpoints.  One purpose of APIs is to hide the internal details of how a system works The term API is often used to refer to web APIs,[2] which allow communication between computers that are joined by the internet.  The API describes and prescribes the "expected behavior" (a specification) while the library is an "actual implementation" of this set of rules RESTful web APIs are typically loosely based on HTTP methods to access resources via URL-encoded parameters and the use of JSON or XML to transmit data.
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Web Technologies

HTML is the standard markup language for Web pages. All HTML documents must start with a document type declaration: <!DOCTYPE html>. The HTML document itself begins with <html> and ends with </html>. The visible part of the HTML document is between <body> and </body>. The <!DOCTYPE> declaration represents the document type, and helps browsers to display web pages correctly. It must only appear once, at the top of the page (before any HTML tags). HTML headings are defined with the <h1> to <h6> tags. <h1> defines the most important heading. <h6> defines the least important heading HTML paragraphs are defined with the <p> tag: HTML links are defined with the <a> tag: <a href="https://www.wschools.com">This is a link</a> HTML images are defined with the <img> tag. <img src="w3schools.jpg" alt="wSchools.com" width="104" height="142"> View HTML Sou...
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Java

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  Java
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