Become a Java Programmer

Learn the character data type, used to store a single character and is case sensitive. Declare chars with quotes, print them, and assign by integer values in JShell.

Install Eclipse by downloading the Eclipse IDE for Java developers from eclipse.org, running the installer, and launching the workspace-ready application.

Create a class as a template and instantiate objects with new, as Fruit apple = new Fruit(); then use == to show identity versus equality among objects.

Create a Car class with a main method and speed, save it as Car.java in JShell, then compile with javac Car.java and run with java Car to print 200.

Review key Java concepts in the Eclipse IDE, including classes and objects, methods and parameters, overloaded methods, return types, and comments, with a quick recap of section 3.

Create a new Java project in Eclipse, define a Person class with name and age fields, and add a printName method that prints the name to the console.

Learn how the toString method prints a Person's name, age, and email, formats the output with String.format, and extends to include Employee’s companyName, employeeTitle, and phoneNumber.

Understand how the else if statement extends if logic, using examples with integers and strings, and employ modulus to test divisibility and string equality with dot equals.

Explore nested if statements by placing one if inside another, using two integers to demonstrate checks for ten and ten, with else handling using the and operator.

Explore the switch statement as a conditional that checks a variable's value with cases, includes breaks to prevent fall-through, and uses a default for unmatched values.

Review section six on loops to understand how while, for, and do while loops operate in Java, including break statements and cases where loops run forever.

Import the java.util.Random class, create a Random object, and generate random integers with nextInt(bound), noting that the bound is exclusive and can produce values up to bound-1.

Create a text-based calculator in Java using a single class with a main method, read two numbers with Scanner, prompt for an operation, and display the result.

This video introduces arrays in Java as lists stored in variables, and shows an integer array test scores and a string array days of week.

Learn to view and replace items at specific indices in arrays, using zero-based indexing with days of week and practice creating and updating a float array for monthly profits.

Learn how array lists differ from arrays, enable type safety with generics, and create and populate typed ArrayList instances using import, add, and wrapper classes for primitives.