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Java 11+ Essential Training

Video Introducing this tutorial

What kind of software can you create?
What you need to know

1. What Is Java?
Explore the history of Java
Principles and components of Java
Explore basic Java syntax
Memory management and garbage collection
Choose a development environment

2. Get Started with Java
Install the JDK on Windows
Install the JDK on macOS
Install and configure IntelliJ IDEA
Test simple Java code in JShell
Compile Java code to bytecode
Pass arguments to a console application
Use the Java API documentation

3. Declare and Manage Variables
Work with primitive variables
Declare and modify primitive values
Declare and initialize object variables
Manage currency values with BigDecimal
Convert values between numeric types
Math operators and the Math class
Manage true and false Boolean values
Manage character values as primitives
More about Java operators

4. Manage String Values
Declare and initialize string values
Build a string from multiple values
Clone the exercise files from GitHub
Convert primitive values to strings
Format numeric values as strings
Interpolate strings with placeholders
Compare string values
Parse string values
Get string values from user input
Challenge: A simple calculator
Solution: A simple calculator

5. Manage Program Flow
Evaluate conditions with if-else
Evaluate conditions with switch-case
Create looping code blocks
Create reusable code with methods
Create overloaded methods
Pass arguments by reference vs. value

6. Debugging and Exception Handling
Debug with IntelliJ IDEA
Handle exceptions with try/catch
Create multiple catch blocks
Close objects with try-with-resources
Challenge: A more complex calculator
Solution: A more complex calculator

7. Create Custom Classes
Declare and use custom classes
Organize code with packages
Create instance fields and methods
Declare multiple constructor methods
Use static fields as constants
Declare and use Enum types

8. Work with Inheritance
About inheritance
Extend classes and override methods
Use objects as their super types

9. Manage Data Collections
Store values in simple arrays
Manage resizable arrays with Lists
Manage key-value pairs with Maps

Next steps