
Explore relational operators in Java, including equals (==), not equals (!=), greater than (>), less than (<), and their inclusive forms (>=, <=) using num1 and num2 comparisons.
Master nested if statements in Java by building a grade calculator that assigns A, B, C, or fail based on student marks. Learn to compare three numbers with nested conditions.
Learn how while and do-while loops work in Java, using conditions to control repetition. Do-while executes at least once, while the while loop starts only when its condition is true.
Learn how to use contains, starts with, and ends with to locate substrings; explore index of, last index of, and case handling with lowercase conversions.
Explore string cut operations in Java, including character access by index, handling out-of-bounds exceptions, substring with begin and end indices, reversing with a for loop, and splitting by a delimiter.
Understand how constructors initialize object state, including default and explicit constructors, this keyword, and constructor overloading illustrated by a road toll example.
Learn that the public static void main method is the Java program’s entry point, and the JVM provides the runtime environment while string args and no such method error matter.
Explore Java's math class in java.lang package, using methods for min, max, pow, sqrt, and constants like PI and E, with sin, cos, tan, log, ceil, floor, round, and random.
Learn how the StringBuilder class in Java creates mutable strings to avoid creating new string objects during repeated concatenation, improving memory and performance; explore append, delete, and reverse methods.
Explore string builder methods such as insert, replace, delete, and reverse through practical examples, including inserting at a specific index, replacing a character range, and reversing the string.
Explore how to use the scanner class to capture user input in java, including strings with nextLine and numbers with nextInt or nextDouble, and reverse a string with a loop.
Generate universally unique identifiers in Java using the UUID class. Display ten UUID.randomUUID values in a loop as 128-bit alphanumeric identifiers.
Explore the super keyword to access methods and fields from a superclass, illustrate method overriding, and call parent class code from subclass using super.doThis and super.num1.
explains how the super keyword calls the parent constructor when a subclass is created, showing how to pass arguments, handle no-argument constructors, and ensure proper initialization.
Explore protected access in Java, compare it with public, default, and private, and see how inheritance and package scope affect visibility of fields like make and model.
Explore abstraction as the fourth pillar of object-oriented programming in Java, learning how to hide implementation details using abstract classes and abstract methods, and using interfaces as an alternative.
Learn to reverse an array by swapping start and end elements with a for loop from index 0 to mid, using a temp variable; a common interview question.
Explore how a Java array of objects holds heterogeneous data types, including strings, numbers, and chars, and extend to two-dimensional arrays for tabular data, with iteration and printing for testing.
Explore the structure of doubly linked lists, where each element contains previous, next, and data, connected through pointers from head to tail, not stored contiguously.
Learn to use a ListIterator to traverse a list forward or backward and modify elements, such as removing nulls, replacing nulls with 0, and converting odd numbers to even.
Explore how hash sets in Java prevent duplicates and do not guarantee insertion order or positional access. Learn union, intersection, and converting a set to a list.
Iterate over sets using a modified for loop or an iterator, compare hash set’s lack of order with tree set’s ascending sorting.
Learn to iterate over maps in Java by converting a map to an entry set and using a for-each loop or an iterator, with a tree map example.
Explore quantifiers in regular expressions, including asterisk, plus, and question mark, and learn how curly brackets set exact, minimum, or maximum repetitions with grouping and the matches method.
Master regex to regularize number ranges with digit blocks, optional digits, and the or operator. Build patterns for 0 to 99, 0 to 1000.
Hi Friends, this course is specially designed for students who do not have prior coding experience. Course covers all the Core Java Concepts from basic to advanced levels along with practical examples and coding exercises.
This course covers Core Java topics in detail from basic to advanced levels. I believe in example-oriented teaching. So, you won’t find any PPTs during the sessions. But, you will find dozens of real time scenarios used to elaborate Java basic and advanced concepts.
Feel free to post your questions/feedback in the block provided under each session-video. I will make sure that all of your queries are addressed. ‘Course Outline’ below will give you a good idea about the depth and the overall coverage of this course. If you want to learn any other Core Java concept - which is not already covered in this course - then feel free to let me know via Udemy messenger.
Course Outline:
Java Basics
JDK 10 and Eclipse Installation
Hello World Java Program
Primitive Data Types in Java
'var' keyword in Java 10
Arithmetic Operators in Java
Logical and Bitwise Operators in Java
Relational Operators in Java
If - Condition in Java
Nested If - Condition in Java
For Loop in Java
Hands-On Exercises on 'For Loop'
Nested For Loop in Java
Hands-On Exercises on 'Nested For Loop'
'While' & 'Do While' Loop in Java
Loop 'Break' & 'Continue' Statements in Java
String Basics in Java
String Comparison Operations in Java
String Search Operations in Java
String (Cut) Slice Operations in Java
String Replace Operations in Java
String Conversion Operations in Java
Object Oriented Programing (OOPS) in Java
Concept of Classes and Objects in Java
Hands on exercises on Class and Object
Methods in Java
Method Overloading in Java
Access Specifiers (Access Modifiers) in Java
Constructor in Java
Data Encapsulation in Java
Static Keyword in Java
Concept of Main Method in Java
Class and Object Advanced Exercises
Class Inheritance in Java
Method Overriding in Java
Polymorphism in Java
Super Keyword in Java
Super Class Constructor in Java
Protected Access in Java
Abstraction in Java
Interfaces in Java (Java Interface)
Final Keyword in Java
Data Structures in Java
Arrays in Java
Array Object in Java
Enhanced (Modified) For Loop for Array Iteration in Java
Hands-on Exercises on Array in Java
2-Dimensional Arrays in Java
Hands-on Exercise on 2D Arrays in Java
Array of Object in Java
Array List in Java (ArrayList)
Structure of ArrayList in Java
Linked List in Java (LinkedList)
ArrayList vs LinkedList in Java
List Iterator in Java
Hash Set in Java
Linked Hash Set in Java
Tree Set in Java
Iterating on Set in Java
Hash Map in Java
Tree Map in Java
Iterating Over Maps in Java
Regular Expressions in Java
Introduction to RegEx in Java
Quantifiers in Regular Expressions
Character Classes in Regular Expressions
Bracket Expressions
OR Operator in RegEX
DOT Operator in RegEX
Greedy and Lazy Matching
Hands-on Exercises on Regular Expressions
Regularizing Number Ranges
Exception Handling in Java
What is an Exception in Java?
Error vs Exception in Java
Checked and Unchecked Exceptions in Java
Throws Declaration in Java
Try and Catch Block (Exception Handling) in Java
'Finally' Block in Java
Date and Time Operations (Revised in Java 8)
Local Date and Time Operations in Java
Custom Date and Time Operations in Java
Future and Past Date Operations in Java
Future and Past Time Operations in Java
Date Difference Calculation in Java
Time Difference Calculation in Java
DateTime Formatter in Java
Special Classes in Java
Math Class in Java
StringBuilder Class in Java
StringBuilder Methods in Java
Scanner Class in Java
Random Class (for creating random numbers) in Java
UUID Class in Java (for creating universally unique string IDs)
Working with File System in Java
How to Read a Text File in Java?
Apache Commons IO
How to Edit a Text File in Java?
Hands on Exercises with Text Files in Java
Copy and Move (Rename) a Text File in Java
Apache POI Setup
Reading Excel Data in Java
Read Excel Data into a 2 D Array in Java
Write Data in Excel Sheet in Java
Interview Questions
**I will be updating more topics to this outline as per changing trends in technology**
To get the maximum benefit from the course, please take a look at following steps explaining 'How to take this course?'
Step 1: Schedule 30-45 minutes of your time daily for 5 days a week. 'Continuity' is the key.
Step 2: All sessions are divided in small videos of less than 20 minutes. Watch 2-3 videos daily.
Step 3: Hands-on exercise is very important. So, immediately try out the programs discussed in the session, on your own. You can download these programs from lecture resources.
Step 4: Assignments with answer keys are provided where-ever necessary. Complete the assignments before jumping on to the next sessions.
Step 5: If you come across any questions or issues, please feel free to contact me and I will make sure that your queries are resolved.
Wish you all a very happy learning.
Note: For the best video streaming quality, please adjust the resolution from 'settings' at bottom right-hand corner of video player. Choose 1080p or 720p as per your network speed.