Java Programming Course by Mosh

Introduction

• Instructor: Mosh
• Aimed at teaching everything needed to start programming in Java
• Course covers:
  • Installing necessary tools for Java
  • Basics of Java
  • Execution of Java code
  • Building simple algorithms
  • Writing professional code
  • Preparing for advanced Java features
• Target audience: Beginners, anyone interested in learning Java
• Instructor's background: Software engineer with two decades of experience, taught over 3 million people
• Mosh’s Coding School: Code with Mosh

Sponsorship Segment

• Sponsor: Dashlane (Password manager and VPN)
• Free for first device, premium available with discount using promo code

Getting Started with Java

Installing Tools

• Java Development Kit (JDK) Installation

  • Essential software development environment for Java
  • Includes a compiler, runtime environment, etc.
  • Download from Oracle's Java SE page
  • Accept license agreement before download

• Code Editor

  • Options: NetBeans, Eclipse, IntelliJ
  • Recommendation: IntelliJ IDEA (Community Edition, free)

Anatomy of a Java Program

• Functions

  • Smallest building block, performs tasks
  • Syntax includes return type, name, parameters, and code block
  • void keyword for functions that don’t return a value
  • Example: sendEmail(receiver, subject, content)

• Main Function

  • Entry point of Java programs
  • Each program has at least one main function

• Classes

  • Containers for related functions (methods)
  • Syntax: public class Main { ... }
  • Naming conventions: PascalCase for classes, camelCase for methods
  • Access modifiers like public, private

Writing and Executing Java Programs

• Open IntelliJ, create a new project
• Set project SDK
• Naming conventions for packages
• Writing a simple Java program: System.out.println("Hello World")
• Compilation and execution steps explained

Under the Hood

• Java Compilation
  • Compiled into Java bytecode (platform-independent)
  • Java Runtime Environment (JRE) and Java Virtual Machine (JVM) execute the bytecode
  • Compilation and execution steps detailed

Java Features and Facts

• Developed by James Gosling, 1995 at Sun Microsystems
• Originally named Oak, then Green, finally Java
• Editions: SE (Standard), EE (Enterprise), ME (Micro), Card
• Java SE 12 as of March 2019
• 9 million developers, 3 billion devices run Java
• Java Developer salary > $100k/year

Course Structure Overview

• Complete four-part Java series
• Part 1: Fundamentals of Programming
• Part 2: Object-Oriented Programming
• Part 3: Core Java APIs
• Part 4: Advanced Features

Section 1: Fundamentals

• Variables and Constants
  • Usage examples, initialization, and scope
• Primitive and Reference Types
  • Differences, use cases

Section 2: Control Flow

• Conditional Statements
  • If, Switch cases to make decisions
• Loops
  • For, While, Do-While, For-each loops
• Break and Continue statements

Section 3: Clean Coding

• Emphasis on writing readable, maintainable code
• Techniques for improving code structure and readability

Conclusion

• Encouragement to join the complete Java series for in-depth learning
• Importance of writing clean, professional code for career advancement
• Java as a versatile and widely-used programming language