Java for real Beginners in the simplest words

You will receive answers to your questions.
Do you need any previous programming or coding experience?
Do you need to be proficient in Math?
Will you be able to achieve success?

4 Rules to follow to be successful in your code learning!

What is JDK and how to install it to write code in Java on your machine?

Where to download and how to install IntelliJ IDEA IDE?
How to create Java project in it?

We will learn how to create your first Java project, and how to run it.

How to run the Java application from CMD and also how to run it as the JAR file

What are variables?
How to use them?
How to create variables in Java?
How to save, and store data in java variables?
What are primitive data types?
What are the values of the primitive data types in Java?

What is a non-primitive datatype?
How to create a variable of a non-primitive datatype?
What is String class?
How to initialize a variable of String class?

What is datatype casting in Java?
How to cast from the smaller datatype to the bigger?
How to cast from the bigger datatype to the smaller?

Which arithmetic operators can you use in Java?
Which unary operators can you use in Java?

What is control flow in Java?
What is an "if" statement?
What kind of "if" statements are in Java?

How to use equality operators?
How to use relational operators?
How to use conditional operators?

What kind of assignment operators can we use in Java?

What is the Ternary operator in Java?
How to assign values using the ternary operator?

What is a nested if statement?
How to create nested if statements in Java?

What is a Switch statement?
How to control your application flow using the switch statements?

How to use the switch statements with the int data type?
How to use the switch statements with the char data type?
How to use the switch statements with the String data type?

What is looping?
What if the For statement?
How to control the flow using for statements?

What is a while statement?
How to control your Java application flow using the while statement?

What is a do-while statement?
How to use the do-while statement in Java?

What is a For-Each statement in Java?
How to use the For-Each statements?

What is a nested loop?
How to create nested For statements?
What can we do using nested statements in Java?

Which branching statements are in Java?
How to use break statements?
How to use break statements in nested loops?
What are labeled and unlabeled break statements?
How to use continue statements?
How to use continue  statements in nested loops?
What are labeled and unlabeled continue statements?

How to create methods?
How to call/use them?
Why do we need them?

What is a return data type of a method?
Why do we need a key work 'return'?
How to create and use the parameters in returned methods?

What is method overloading?
How to overload method in Java?
Why do we need to overload methods?

What is OOP?
What are the main concepts of OOP?
What is a Class?
What is an Object?
How to create Classes?
How to create objects from these Classes?
How to call/invoke methods from the object in Java?

What is a getters and setters pattern?
Why do we need it?
How to create and how to use getters and setters in Java?

What is a constructor in Java?
What is a default constructor?
How to use constructors?
How to create custom constructors?
How to create objects from classes using custom constructors with the parameters for object fields initialization?

What is Inheritance?
What is a subclass(child)?
What is a superclass(parent)?
How to use variables in inherited classes?
Why do we need a default constructor in inheritance?
What is a super keyword?
How to use super constructors?
What is methods overwriting?
How to overwrite methods in Java?

What is the Encapsulation OOP concept?
How to override the toString() method, and why do we need it?
How to restrict access to data?

What is Polymorphism?
How to save children's objects to parent-type variables?
What is a static keyword?
How to create and execute static methods in Java?

What is the abstraction OOP concept?
Why do we need it?
How to create and use the abstract classes and methods?

What is an Interface in Java?
How to create interfaces?
How to implement interfaces?
Why do we need to implement interfaces?
How to implement multiple inheritance using interfaces in Java?

How to retrieve the data from the user's inputs?

How to create static variables and methods?
Why do we need the static variables and methods?
What is an anonymous object?
How to create and how to use anonymous objects?

What is a final keyword with variables?
What is a final keyword with mathods?
What is a final keyword with classes?

What is a package in Java?
How to create packages?
How to use classes with the same names to create objects?

What is Scope in Java?
What is a class scope?
What is a method scope?
What is a block scope?

What is a public access modifier and how to use it?
What is a private access modifier and how to use it?
What is a protected access modifier and how to use it?
What is a default access modifier and how to use it?

How to handle errors in Java?
What is a try-catch block?
How to catch multiple exceptions?

How to use a finally block?
What are the benefits of using a finally block at the try statements?

Why do we need a throw keyword?
Why do we need a throws keyword?
How to use a throw keyword to force exceptions?
How to use a throws keyword to handle exceptions?

What is an unchecked exception in Java?
What is a checked exception in Java?

How to work with Strings values?

How to save multiple values to one variable?
What is an array?
How to create values in arrays?
How to access values in arrays?

What is an ArrayList?
How to add, remove, and update elements of ArrayLists?

How to sort ArrayList and Lists in alphabetic or reverse order?

How to create a set of unique values?
What is HashSet?
What is TreeSet?

What is a Map in Java?
How to save a value to a map using a key and value pair?
What is a HashMap?
What is a LinkedHashMap?
What is a TreeMap?