Online Core Java Training and Tutorials | Complete Core Java Certification Course

COURSE CONTENT
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Basics of Core Java

1 Lecture
1 Hr 25 Mins

1 Lecture
1 Hr 25 Mins

Platform Independent and Updates
JDK, JRE, JVM and IDE
Primitive and Reference data types - byte, short, int, long, float, double, char, boolean, literals,
default values, maximum value, complete range and memory storage capacity
Package, Class, getter/setter or Accessor/Mutator methods and Java Project

Control Flow Statements - If, If-else, if-else-if, switch-case, while,
do-while, for Loop, break and continue

3 Lectures
2 Hrs 5 Mins

Control Flow Statements - If, If-else, if-else-if, switch-case, while, do-while, for Loop, advanced for loop, for loop performance test, break, continue, labelled break and labelled continue

3 Lectures
2 Hrs 5 Mins

Control Flow Statements
Selection Statements - Is if, else-if and switch-case
Loop Constructs - while, do-while, infinite while and infinite do-while, for loop and enhanced for loop
For Loop Performance Test - Best way to use For Loop in projects with time consumption differences
Transfer Statements - break, continue, try-catch-finally, assert keyword, labelled break and labelled continue

Interface, Abstract Class And Inheritance

4 Lectures
2 Hrs 10 Mins

4 Lectures
2 Hrs 10 Mins

What is a Interface, How and When Interface is created and Why Interfaces are created?
What is a Abstract Class, How and When Abstract class is defined and Why Abstract Class is defined?
How and When a Interface implements another interface - What does it mean and when do we do this?
How and When a abstract class implements interface - What does it mean and when do we do this?
What happens when a class implements a interface and a class extending a abstract class?
Explain interface, abstract class and Inheritance concepts with examples and with implementations

Constructors And Polymorphism

4 Lectures
2 Hrs 5 Mins

4 Lectures
2 Hrs 5 Mins

What is a Constructor, When and Why do we create Constructor and How does a Constructor work?
Constructor for non-static variable initialization and static initializer block for static variable initialization
Argument and No-Arg based constructor, Explicit constructor chaining, constructor overloading
Polymorphism - compile-time polymorphism(method overloading) and run-time polymorphism( method overriding) and @Override Annotation
When to do we need to do compile-time polymorphism(method overloading) and How do they work?
When to do we need to do run-time polymorphism(method overriding) and How do they work?

Access Modifiers And Static Keyword

2 Lectures
2 Hrs 15 Mins

2 Lectures
2 Hrs 15 Mins

Access Modifiers - public, default(package-private), private and protected - What are Access Modifiers, When and How are they used?
static keyword - When do we use static keyword in front of variables, methods and inner classes and when we don't?
Rules related to static keyword - static method vs non static method
static initializer block for static variable initialization and constructor for non static variable initialization
Why is main method static, Why methods in java.lang.Math API static or in general what all methods are static in APIs?

this Keyword, super Keyword And Everything about Arrays

7 Lectures
2 Hrs 10 Mins

7 Lectures
2 Hrs 10 Mins

this keyword - resolves the ambiguity between instance variable, local variable and method parameter
this keyword - explicit constructor chaining, this as method parameter, this as method return type and this in static method
super keyword - resolves the ambiguity between variables and methods of same name between immediate parent class and current class and super in static methods
Array - instantiate, initialize, declaration and traversal using for loop
Array Comparison(Arrays.equals), Sorting Arrays(Arrays.sort), Arrays.toString, Multi Dimensional Arrays and Arrays as method Argument
Difference between Arrays and Collections

Final Keyword And Inner Class(static and non-static)

3 Lectures
2 Hrs 25 Mins

3 Lectures
2 Hrs 25 Mins

final keyword with class, method, variable, inner class, interface, interface method, interface variable, abstract class, abstract method and abstract class variable
final keyword with static/non-static variable and method in class and in an interface
Inner Classes - Static and Non Static - Member, Local and Anonymous
Static Inner Class or Nested Inner Class
Interface within class, Class within Interface, Interface within Interface and class within class - All are possible - How?

instanceOf, Upcasting, Downcasting and Object Class Methods

6 Lectures
2 Hrs 10 Mins

6 Lectures
2 Hrs 10 Mins

What is instanceof keyword in java projects and how and when instanceof keyword is used
What help does instanceof keyword provides or how instanceof keyword help us stop exceptions from coming?
What is Casting and how do we cast objects in java?
How do we upcast objects in java and how do we downcast objects in java
Object Class Methods - equals, hashCode, clone, wait, notify and notifyAll methods - usage and implementation
Objects comparison - ==(double equal to) and equals method with hashCode method - usage and implementation

Immutable Class, Wrapper Class, String, StringBuffer and StringBuilder

11 Lectures
2 Hrs 15 Mins

11 Lectures
2 Hrs 15 Mins

What is a Immutable Class and What is a Immutable Object?
How String is an immutable class and String objects a immutable object?
Wrapper Classes(like Integer, Boolean, Float, Double etc.), File, Locale API etc. - Other immutable classes in Java
AutoBoxing and Unboxing in Wrapper Classes
String, StringBuffer and StringBuilder - Which to use when - Time Consumption and performance wise which one is better
Create Immutable class of your own - Rules to be followed

Comparable Interface, Comparator Interface And Enum Data Type

9 Lectures
2 Hrs 5 Mins

9 Lectures
2 Hrs 5 Mins

Comparable and Comparator Interface - How to Sort attributes of objects?
Arrays.sort() and Collections.sort() methods
compareTo() and compare() methods - Entire Usage with multiple attributes of objects
enum data type
Usage of enum in projects

Regular Expressions in Java Projects

9 Lectures
1 Hr 30 Mins

9 Lectures
1 Hr 30 Mins

Pattern and Matcher API - Usage
matches, index, replacement and group methods of Matcher API - how to use with Pattern API methods for pattern matching?
Character classes, quantifier classes and metacharacters classes for text validation
Create regular expression that accepts 10 numeric characters and text should begin with 7, 8 or 9 digit only?
Create a regular expression that accepts alpha numeric characters only and length must be 6 characters long only.
Java Regex Finder Example

Exception Handling Concepts

9 Lectures
1 Hr 10 Mins

9 Lectures
1 Hr 10 Mins

What does Exception and Error mean in Java Projects?
What does Checked and Unchecked Exceptions mean with examples and their implementations?
Hierarchical diagram of Exception and Error classes
try-catch, finally, return with finally, try and finally, try catch and finally - Exception Handling Mechanisms
Object, Throwable, Exception, Error, RuntimeException and other exceptions - Exception and Error class hierarchy and Is Throwable the root or parent of all exception and error classes
throw and throws keyword for exception propagation and manually stopping the flow of the application

Exception Handling Concepts Part-2

5 Lectures
1 Hr 20 Mins

5 Lectures
1 Hr 20 Mins

Create your own exception class, use it in code, handle exceptions with if-else selection statement and ternary operators
Exception Handling Inheritance Rules - while overriding methods from parent class or parent interface in child classes
Handling multiple exceptions using Single Catch Block
Using ternary operator, how can we stop NullPointerException from coming in projects?
try with resource - Usage and Comparison with basic try-catch block
AutoCloseable interface - close method with try with resource - replacement of finally block

Java Exception Handling Concepts Part-3

7 Lectures
1 Hr 30 Mins

7 Lectures
1 Hr 30 Mins

assert keyword - Everything
How with java ternary operator can we stop NullPointerException from coming in projects?
AutoCloseable interface - AutoCloseable interface(close method) with try with resource, AutoCloseable replacement of finally block
try with resource - use and comparison with try-catch block
Class extends Exception and Exception Handling Rules in Child Classes

Generics Programming In Java

6 Lectures
1 Hr 55 Mins

6 Lectures
1 Hr 55 Mins

What are Generics and what are the advantages of using Generics in Java Programming?
How do we create a generics class?
How do we create a generics method?
What were the problems with Collections Framework implementation classes prior to jdk 1.5 version when the concept of Generics was not there?
What does unbounded wildcard mean in Generics programming and how to use it?
What does lower bounded wildcard mean in Generics programming and how to use it?

List Interface - Collections Framework - Part-1

10 Lectures
3 Hrs 58 Mins

10 Lectures
3 Hrs 58 Mins

What is Collections Framework?
What is the hierarchical diagram of Collections Framework?
What are the unique characteristics of List Interface?
What is the difference between generics based and non-generics based collections and which one is used post jdk 1.5?
Why it is being said that Collections Framework provides an architecture to store and manipulate group of objects?
In how many ways can we traverse Arraylist object?

List Interface API - Collections Framework - Part - 2

3 Lectures
2 Hrs 5 Mins

3 Lectures
2 Hrs 5 Mins

Is Vector a legacy API and available since jdk1.1?
Is Vector a synchronized API?
What are the unique characteristics of Vector API?
When do we use Vector API in projects?
How Vector API differs from other List and other interface implementation API's(ArrayList and LinkedList API)?
How can we convert Vector API object to ArrayList or LinkedList object and vice versa?

Set Interface API - HashSet, LinkedHashSet and TreeSet - Collections Framework

4 Lectures
1 Hr 55 Mins

4 Lectures
1 Hr 55 Mins

In how many ways can we traverse HashSet API objects?
Can ListIterator be used for traversing HashSet API also?
Can we just use Iterator interface and enhanced for loop to traverse Set interface implementation classes?
What are the most commonly used methods of HashSet API?
When and how do we convert ArrayList or LinkedList object to HashSet object or vice versa?
How HashSet API differs from other Set and List interface implementation classes?

Map Interface - HashMap, LinkedHashMap, TreeMap And Hashtable

3 Lectures
2 Hrs

3 Lectures
2 Hrs

What are the unique and important characteristics of Map interface?
What are the different Map interface implementation classes and how these Map interface implementation classes(HashMap, LinkedHashMap, TreeMap and Hashtable) differ from each other?
What does HashMap class do and when do we use HashMap as part of projects?
How Hashtable API differs from other Map interface implementation classes?
In what all scenarios do we use Hashtable API as part of projects?
What are the unique characteristics of HashMap class that makes it different from other Map, Set and List interface implementation classes,

Lambda Expressions

5 Lectures
1 Hr 50 Mins

5 Lectures
1 Hr 50 Mins

What does curly brackets(or braces), round brackets(or parenthesis), square brackets(or box brackets) or angular brackets mean in java programming language?
What does Functional Interface mean in java programming language, why and where are they used?
What does Anonymous inner class mean in java programming language?
What does Lambda Expressions mean in java programming language?
How Functional Interfaces and Anonymous classes relates to Lambda Expressions programming in java programming language?
How different brackets are utilized in Lambda Expressions programming?

Method Reference, Predicate, Function, Supplier, Consumer And Bi-consumer API's

4 Lectures
1 Hr 45 Mins

4 Lectures
1 Hr 45 Mins

What does Method Reference mean in java programming language?
How does Method Reference relates to Lambda expressions in java projects?
Why and where do we use method reference in particular in java based application?
What does Predicate, Function, Supplier, Consumer and Bi-Consumer interfaces do in java programming language?
Is Predicate, Function, Supplier, Consumer and Bi-Consumer interface the Functional Interfaces in java programming language?
How does Predicate, Function, Supplier, Consumer and Bi-Consumer interface relates to lambda expression programming?

Java.io Package API's

4 Lectures
2 Hrs 5 Mins

4 Lectures
2 Hrs 5 Mins

When do we use java.io package in java projects?
When do we use ObjectInputStream and ObjectOutputStream APIs with Reader and Writer Interfaces?
Basically on what all parameters do we decide which API to use between BufferedWriter and ObjectOutputStream in java projects for file writing purposes?
Basically what makes us decide which API to use between BufferedReader and ObjectInputStream in java projects for file reading purposes?
What is the difference between BufferedWriter and ObjectOutputStream API?
What is the difference between BufferedReader and ObjectInputStream API?

Java NIO(Non-Blocking Input Output) Package Part 1

5 Lectures
1 Hr 42 Mins

5 Lectures
1 Hr 42 Mins

Is java.nio a new package added as part of jdk1.7 version?
How can we get all the properties of a file using BasicFileAttribute and BasicFileAttributeView APIs?
What does APIs like BasicFileAttribute and BasicFileAttributeView do and when do we use them?
What methods does Files.walkFileTree API provides which we can use to recursively delete files/directories or complete folder structure?
How can we recursively delete directories using Files.walkFileTree method?
Can we delete directory on the fly using Files.deleteDirectory method?

Java NIO(Non-Blocking Input Output) Package Part 2

5 Lectures
2 Hrs 5 Mins

5 Lectures
2 Hrs 5 Mins

What does SimpleFileVisitor API do and when do we extend this API as part of child classes?
What are the events that can be registered with WatchService API and how to capture these events?
What does WatchEvent API do?
What does WatchKey API do?
What does WatchService API do?
How can we search files ending with any no. of extensions using DirectoryStream API?

Threads Basics

7 Lectures
2 Hrs 10 Mins

7 Lectures
2 Hrs 10 Mins

What does thread mean in java programming language?
What does yield method do in threads based programming and in what all scenarios do we basically use yield method?
Does threads takes precedence according to the priorities set using setPriority method of Thread class?
How do we set priorities of each and every individual thread?
What is thread priority?
What does join method do in thread based programming and in what all scenarios do we actually use join method?

Synchronized Method/Block , Static Synchronized Method/Block,
Deadlocks, Wait, Notify And NotifyAll

3 Lectures
2 Hrs 5 Mins

3 Lectures
2 Hrs 5 Mins

What does static synchonization mean and why and when do we make static methods as synchronized?
What does synchronization mean in threads based programming?
Why and when do we use synchronized keyword with methods or blocks as part of java based application?
What are the basic problems that comes in java projects when we don't use the concept of synchonization?
What does static synchonization mean and why and when do we make static methods as synchronized?
What is a deadlock situation in threads based programming and how java code should be written so as to avoid thread deadlocks to happen as part of java based application?

Multithreading Concepts(concurrency, Executors, Lock, Reentrantlock And Semaphores)

1 Lecture
2 Hrs 10 Mins

1 Lecture
2 Hrs 10 Mins

What does Concurrency API do and why and where do we use this API?
Why and when do we use Mutex API as part of java based application?
Why and when do we use Semaphore API as part of java based application?
What does Semaphore and Mutex APIs do in threads based programming?
How does Lock interface differs from a synchronized method?
What does Lock interface and ReentrantLock class implementation do and how does this help in achieving multi threading concepts?

Design Patterns(Singleton, Factory And Data Access Object(DAO))

3 Lectures
1 Hr 55 Mins

3 Lectures
1 Hr 55 Mins

What does design patterns mean in java programming language?
What is the need/requirement following which programmers chooses to design applications that follows Data Access Object(DAO) design pattern?
What is Data Access Object(DAO) design pattern?
What are the rules that needs to be followed to design applications which are based on Factory design pattern?
What is the need/requirement following which programmers chooses to design applications that follows Factory design pattern?
What is Factory design pattern?

Locale, Resource Bundle, Number Format, Currency And Date API And Internationalization

3 Lectures
2 Hrs 5 Mins

3 Lectures
2 Hrs 5 Mins

How can we create applications that work globally without making separate deployments across each and every country specific to their language or currencies etc. or basically how do we achieve the con
How does ResourceBundle and Locale API work together to make application deployment work globally?
What are the different methods of Locale class that are majorly used as part of java based application?
In how many ways can we create Locale class object in java based application?
What does ResourceBundle API do in java programming language?
What does Locale API do in java programming language?

Java Time -LocalDate, LocalTime And LocalDateTime API's

5 Lectures
2 Hrs 15 Mins

5 Lectures
2 Hrs 15 Mins

What does APIs like ZoneId, ZonedDateTime and Instant of java.time package do and how do they work?
Date API - java.util and java.sql package - how does Date API of these two packages work and what was the problem with them?
Is java.time package introduced as part of jdk version 1.8?
Is java.time package API a replacement to Date API - java.util and java.sql package?
LocalDate, LocalTime and LocalDateTime APIs of java.time package - how do they work and when do we use which API?
now, of, ofEpochDay, ofYearDay methods of LocalDate, LocalTime and LocalDateTime APIs - how do they work and when are they used?

JDBC Concepts

5 Lectures
2 Hrs 25 Mins

5 Lectures
2 Hrs 25 Mins

What does a term 'Transaction' mean in java database programming and how does one transaction gets completed as part of a database commit. How can we use SavePoint API to better manage transactions in
PreparedStatement and CallableStatement APIs - how do they work and when are they used?
JDBC API with JDBC drivers
JDBC(Java Database Connectivity) API
How many types of drivers are there that can be used as part of java based application for connecting to the database?
DriverManager API - getConnection method to get database connection

ResultSet Types, Rowset - JdbcRowSet, CachedRowSet, WebRowSet, JoinRowSet And FilteredRowSet

8 Lectures
2 Hrs 5 Mins

8 Lectures
2 Hrs 5 Mins

RowSet API
JoinRowSet API
WebRowSet API
CachedRowSet API
JDBCRowSet API
When do we prefer RowSet over ResultSets?

Latest JDK Concepts

3 Lectures
2 Hrs 55 Mins

3 Lectures
2 Hrs 55 Mins

Streams - Map, Filter, Reduce, Collect - Intermediate and Terminal Functions
Parallel Streams using Predicate(Functional Interface)
Default, Static and Private Functions in Interface
Optional Class and Parallel array sorting
Modular system (Project Jigsaw), Reactive streams and Collection factory methods
Local-variable syntax for lambda parameters, HTTP Client API and Unicode 10 support

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Control Flow Statements - If, If-else, if-else-if, switch-case, while, do-while, for Loop, advanced for loop, for loop performance test, break, continue, labelled break and labelled continue

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