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Course and Instructor Introduction
Making the best of this course
Full Stack Developer Path
Slides used in the course

Introduction to Java and OOPS

Java Development Kit
Java Platform Independency
Object-Oriented Programming Introduction
The 4 Object Oriented Principles
Encapsulation
Inheritance
Abstraction
Polymorphism
Building Blocks of a Java Program
Methods
Introduction to Java and OOPS

Software Installation and First Java Program

Installing Java
Windows Only - Install Java
Installing Eclipse
Configuring JDK in eclipse
Latest Eclipse Installation
Downloading the completed projects
Download the assignment solutions
Create a Hello World Program
Hello World Explained
First Java Program

Static Members and their execution control flow

Static and Non Static Contexts
Static Blocks
Static Methods
Static Variables
Static Members

Non Static Members and their execution control flow

Non Static Members
Create Non-Static Variables Blocks and Constructor
Static vs Non-Static Blocks
Default Constructor
Create an object reference
Create object reference in a static block
Create a static reference directly
The this Keyword
Create a reference in a static method
Invoking a Non-static method
Static vs Non-Static a Summary
Non Static Members

Datatypes, Literals, Variables, Type Conversion, Casting & Promotion

Data Type Introduction
Data Type In Action
Type Casting
Implicit Type Casting
Explicit Type Casting In Action
Explicit Type Casting In Action Beyond Range
Identifiers
Bonus Lecture - Variable Types
Data Types
Variables
More Programs - Data Types

Wrapper Classes with Auto boxing & unboxing

Wrapper Classes Introduction
Primitives and Objects
Primitives and String
String and Objects
Wrapper Type Constructors
Wrap up the wrapper types
Command Line Arguments
More Programs - Command Line Arguments
Wrapper Classes

Operators and Assignments

Increment and Decrement Operators
Arithmetic Operators
String Concatenation Operator
Relational Operators
bitwise operators
short circuit operators
assignment operator
Ternary Operator
More Programs - Operators and Assignments
Operators and Assignments

Flow Control Statements

Flow Control Statements Introduction
IF-ELSE
If Else Ladder
Switch
Switch Fall Through
While
Do-While
For Loop
Break
Labelled Blocks and Break
Continue
Flow Control Statements
Flow Control
Loops
More Programs - If Else Ladder
Switch
More about Switch
Switch Problem
While Loop
Do While Loop
For Loop

Access Modifiers

Introduction
private
default
protected
Access Modifiers

Packages

Packages Introduction
Importing Packages
Using classes with the same name
Sub Packages
Java Lang Package
Naming the packages
Importing and Using In Built Classes
Static Imports
Static Imports
Packages

Event Management Usecase

Introduction
Create the Project and Package
Create the classes
Instantiate Organizer and Event
Create and use parameterized constructors

Inheritance

Single Inheritance
Multi Level Inheritance
Inheritance and Memory Allocation
Multi Level Inheritance and Constructors
Hierarchical Inheritance
Method Overriding
super Keyword
super Method
Constructor Chaining
Inheritance
Applying Inheritance to the Event Management Application
Employee Usecase
Test
Final and Shadowing

Abstraction

Introduction
Create an abstract class
Main method in a abstract class
Extending an abstract class
Abstract and Other Modifiers
Create an interface
Interfaces vs Abstract Classes - A Summary
Abstraction
Final Classes and Variables
Final Methods
Marker Interfaces
More Programs - Methods and Variables in interfaces
Methods Signatures and multiple interfaces
Interfaces vs Abstract Classes
Final vs Abstract

Polymorphism

Introduction
Compile Time Polymorphism Introduction
Compile Time Polymorphism In Action
Runtime Polymorphism
Runtime Polymorphism In Action
Interfaces
Using Interfaces
Object Casting
Polymorphism
More Programs - Overloading and Auto Promotion
Auto Promotions and Object Types
Overriding and Static Method
Variables and Overriding
Overloading and Overriding Main Method
Abstraction

Encapsulation

Introduction
Encapsulated Class
Advantages
Encapsulation
Encapsulation
Encapsulate the Event Management Application
Abstraction in Event Management Usecase
Runtime Polymorphism in Action

Exception Handling and Assertions

Exception Handling Introduction
Exception while dividing numbers
Exception while parsing a String
ArrayIndexOutOfBoundException
NullPointerException
Exception Class Hierarchy and Handling
Handling Exceptions
Multiple Catch Blocks
Exceptions and Inheritance
Handling Checked Exceptions
Using a finally block
Using a throws keyword
Using a throw keyword
Creating Custom Exceptions
Exception Handling
Assertions
Assertions HandOn
Popular Exceptions Summary
Few More Exceptions
Exception Handling

Multithreading

Single-Threaded Example
Multi-Threading in Action
Sleep Method
Join Method
Calculating Time
Thread Identity
Thread Priority
Implementing Runnable Interface
Yield Method Demo
Interrupt Method Demo
Synchronization
Synchronization Demo
Class Level Lock
Class Level Lock Demo
Synchronized Block
Synchronized Blocks Demo
InterThread Communication
InterThread Communication in Action
Thread Groups
ThreadGroups in action
ThreadGroup Priorities
Few more methods on ThreadGroup
Daemon Threads
Deadlock Introduction
Deadlock in action
Multi Threading
Multithreading

Executor Framework Quick Start

Disadvantages of traditional thread creation
Executor Framework Introduction
Implement CheckProcessorTask
Create a pool of threads
Callable and Future
Implement Callable
Use Future and read the result
Executor Framework

Garbage Collection & Types of Objects

Introduction
Basic GC Demo
Pushing the JVM Memory Limits
Requesting for Garbage Collection
Garbage Collection

Inner Classes

Static Inner Classes With Static Members
Static Inner Classes With Non-Static Members
Non-Static Inner Classes
Accessing Outer Class Members
Local Inner Classes
Anonymous Inner Classes
Anonymous Connection Class
Anonymous Runnable Class
Inner Classes

String Handling

Strings Introduction
Different ways to create a String
Strings and Wrapper Types
String Pooling
Immutable Values
Immutability in Action
String Pooling In Action
String Comparision
Object Comparision
String Methods
More String Methods
StringBuffer and StringBuilder
String vs its cousins
Create Custom Immutable Class
Reverse a String
Reverse a String - Take Two
String Handling

IO Streams (File IO)

IO Streams Introduction
Read a File Using FileInputStream
Copy A File using FileOutputStream
Using Reader And Writer
StringTokenizer
Count Words Using BufferedReader and StringTokenizer
Try with Resource Block
Serialization
Serialization In Action
Deserialization In Action
Using Scanner Class
hasNext method
IO Streams

Arrays

Arrays
Using Arrays
For-Each Loop
Few more things about an array
Two Dimensional Array
Array Program 1
Array Program 2
Array Program 3
Arrays
Arrays

Object Class Methods

Introduction
toString method
Overriding the toString method
hashCode
Override the hashCode method
Override the equals method
equals and hashCode Contract
Object Class Methods
Object class methods

Collections with Generics

Collections Introduction
List Introduction
ArrayList Hands On
Restricting the ArrayList Type
Inserting and Replacing Objects
addAll and contains Methods
size get and remove Methods
LinkedList
LinkedList Hands On
Set Introduction
Random class
Using HashSet
Different Set Classes
Iterator
TreeSet of Strings
TreeSet of StringBuffer
ListIterator
Comparable and Comparator
Create a StringBuffer Comparator
Sort Strings by Length
Sorting Objects
Create an Object Comparator
Map Introduction
HashMap Demo
LinkedHashMap Demo
IdentityHashMap Demo
WeakHashMap Demo
Queue Introduction
PriorityQueue Introduction
PriorityQueue In Action
NavigableSet Introduction
Navigable Map
Arrays and Collections Classes
Collections Sort
Using Custom Comparator
Binary Search
Reversing a List
Arrays sort()
Arrays sort using a custom comparator
Arrays Binary Search
Array to List conversion
Generics
Generic class structure
Create your own Generic Class
Restricting Generic Type Parameters
Using multiple restrictions
Using Generic Method Parameters and Wild Cards
Wildcard and extends
Wildcard and super
Method level generic type parameters
Type Erasure
Collections with generics

Concurrent Collection

Introduction
Problem with traditional List
Use CopyOnWriteArrayList
Use Multiple Threads
Use CopyOnWriteArraySet
Use ConcurrentHashMap
BlockingQueue Introduction
Producer Consumer Pattern

Enums

Enum Introduction
Using a Enum
Values and Ordinal methods
Defining and using fields
Enums

Java 8 Features

Introduction
Lambda Expressions
Functional Interfaces
Create a functional Interface
Create your first Lambda
Addition using Lambdas
Lambdas using Runnable Interface
Lambdas and anonymous classes
Default methods in interfaces
Diamond Problem and Default Methods
Predicates
Predicate handson
String Predicate
Passing Predicate to a method
Predicate Joins
Predicate Joins in Action
Functions
Function Hands-On
Method Referencing using:: Operator
Method Referencing in action
Referencing an instance method
Referencing a Constructor
Streams Introduction
Filter Even Numbers Using Streams
Convert Strings to Lower Case using streams
Other Methods on the Stream

JVM Architecture

What is a Virtual Machine?
Components of a JVM
How Class Loaders Work
Types of class loaders
Dynamic Class Loading In Action
Class is loaded only once
Display the class loaders
ClassLoading Sub System
Linking
Initialization
Method Area
Stack Area
Heap Area
PC Registers Area
Native Method Stack Area

Internationalization

Introduction
Locale
Locale hands on
NumberFormat
NumberFormat hands on
NumberFormat
NumberFormat integers and fractions
DateFormat
DateFormat hands on
DateFormat Time instance
SimpleDateFormat Class
String to Date
Including Time

Annotations

Introduction
Using @Deprecated
Annotations
Using @Override
Using @SuppressWarnings
@SuppressWarnings and Generic Types
Create User Defined Annotation
Use your annotation
Examine the inbuilt annotations

Reflections API

Introduction
Key Reflection API Classes
01:12
Load the Class
List the constructors fields and methods
Create an Object
Invoke the Parameterized Constructor
Invoke the Getter
Invoke the Setter
Summary so far
Reflection
Modifying private fields
Accessing Annotations
Accessing fields on annotation
Different ways to create objects

Regular Expression

Introduction
First Regular Expression
Meta Characters and Quantifiers
Use Meta Characters and Quantifiers
Validate Email
Validate Using String class
Validate Cell
Find Text Files
Regular Expressions and Split Method
Regular Expressions

Interview Questions

Components To Compile and Run a Java Program
Constructors
Overloading vs Overriding
Final Finally and Finalize
Generics and Type Erasure
== vs equals()
Java Class Loaders
serialVersionUID

Java 9 Features

Introduction
Software Setup
Private Methods in interfaces
Static Private Methods
Improved Try with resource blocks
Immutable Collections
@SafeVarargs Enhancements
New Methods in streaming API
JSHELL Introduction
JShell in Action
More JShell
Modules Introduction
Create Modules
Use one module inside another
Packages are mandatory
Transitive Dependencies
Using Static and Cyclic Dependencies
Qualified Exports
Aggregator and Package Resolution Assignment
What are modules
Why use modules
How to use modules
How to restrict modules
How to aggregate modules

Java 10 Features

Introduction
Using var to declare variables
Uses of var
var restrictions
Collectors API updates
Assignment
Java 10

Java 11 Features

Introduction
String API Updates
Files API Updates
isEmpty on Optional
Removals

Java 12 Features

Introduction
String API Updates
CompactNumberInstance
Unicode Characters
Collectors API updates

HTTP Client API

Introduction
Fake REST API
HTTPClient in action
Use HTTP POST
Handler Headers
Use Async Request

Java 13 and 14 Features

Introduction
Software Setup
String Content Block
Switch Expressions
Switch Lambda Syntax
Instance of Pattern Matching
Helpful NullPointerExceptions
Record Introduction
Magic behind the scenes
More about record

Java 15 Features

Introduction
Sealed Classes
Sealed Interfaces
Enhancements to record preview

Socket Programming

Introduction
Create a server
Create a client
Create a Chat Server
Create a Chat Client
Test
Refactoring

Coding Problems

Reverse the characters in the words
Count the characters
Right Angled Triangle pattern
Pyramid Pattern
Remove Duplicate Chars

Additional Content - Jar Files

Introduction
Create a Jar
Create an Executable Jar

Additional Content - Maven and JUnit

Maven Introduction
Create a maven project
Build the Project
JUnit Introduction
Implement the hello method
Upgrade the JUnit Maven Dependency
Write the Test
Assert for a value

Debugging Fundamentals

Introduction
Debugging in action
The four key keys
Call stack and breakpoints
Accessing variables
Watchpoint

Wrap Up

Final Quiz
Interview Help
Bonus Lecture

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Start Here

Introduction to Java and OOPS

Software Installation and First Java Program

Static Members and their execution control flow

Non Static Members and their execution control flow

Datatypes, Literals, Variables, Type Conversion, Casting & Promotion

Wrapper Classes with Auto boxing & unboxing

Operators and Assignments

Flow Control Statements

Access Modifiers

Packages

Event Management Usecase

Inheritance

Abstraction

Polymorphism

Encapsulation

Exception Handling and Assertions

Multithreading

Executor Framework Quick Start

Garbage Collection & Types of Objects

Inner Classes

String Handling

IO Streams (File IO)

Arrays

Object Class Methods

Collections with Generics

Concurrent Collection

Enums

Java 8 Features

JVM Architecture

Internationalization

Annotations

Reflections API

Regular Expression

Interview Questions

Java 9 Features

Java 10 Features

Java 11 Features

Java 12 Features

HTTP Client API

Java 13 and 14 Features

Java 15 Features

Socket Programming

Coding Problems

Additional Content - Jar Files

Additional Content - Maven and JUnit

Debugging Fundamentals

Wrap Up

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