Learning Java 17 

Learn Java code

What you should know

Working with the exercise files

What is Java?

Install the Java Development Kit

How to build and execute Java programs

Explore the IntelliJ IDEA

Write your first Java program

Run your first Java program

Primitive data types

Data types and variables in Java

Strings in Java

Using indexes with strings

Concatenating strings

Input and output in Java

Map program control flow

Operators in Java

Decision-making with if in Java

Understanding scope

Understanding while loops

Using loops in Java

Challenge: Multiple choice

Solution: Multiple choice

Debugging with print statements

Debugging with an IDE

Challenge: Find the errors

Solution: Find the errors

What are functions?

Defining functions in Java

Calling functions in Java

Parameters in Java

Return types in Java

Using built-in functions in Java

Challenge: Salary calculator

Solution: Salary calculator

What is a class?

What is a constructor?

Creating a class in Java

Creating an instance in Java

Instance versus class members

Using instance and class methods in Java

Instance and class variables in Java

Reviewing classes versus instances

Challenge: Student profile

Solution: Student profile

Continue your Java learning