Java is a general-purpose programming language that is a concurrent, class-based, and object-oriented language. Java follows the concept of “write once and run anywhere (WORA).” This means that compiled Java code can be run on all different platforms that support Java. There’s no need for recompilation.

Eclipse IDE

Chapter 1 How to Download and Install Eclipse IDE
Chapter 2 How to Clone a project from GitLab using Eclipse
Chapter 3 How to Export Eclipse projects to GitLab

IntelliJ IDE

Chapter 1 How to install IntelliJ on Windows
Chapter 2 How to create a Java project in IntelliJ
Chapter 3 How to Clone a project from GitLab using IntelliJ
Chapter 4 How to Export IntelliJ project to GitLab

Basics of Java

Chapter 1 How to Download & Install Java JDK 11 in Windows
Chapter 2 Data Types and Operators in Java
Chapter 3 Decision Making in Java – If, If Else, Switch, Break, Continue
Chapter 4 Loop Control Statements in Java – For, While, Do While, Enhanched For Loop
Chapter 5 String Manipulation
Chapter 6 Difference between == and equals() method in Java
Chapter 7 Arrays in Java
Chapter 8 Java Access Modifiers: Explained with Examples
Chapter 9 ArrayList in Java
Chapter 10 How to compare ArrayLists – contains?
Chapter 11 How to compare ArrayLists – containsAll method?
Chapter 12 Methods in Java
Chapter 13 Method Overloading in Java
Chapter 14 Constructors in Java
Chapter 15 This Keyword in Java
Chapter 16 Static Keyword – Static Variable and Static Method in Java
Chapter 17 Difference between Static Method and Non-Static Method
Chapter 18 How to use Java Lambda expression to create thread via Runnable function
Chapter 19 runAsync and supplyAsync in ComputableFuture in Java8
Chapter 20 HashMap in Java
Chapter 21 LinkedHashMap in Java
Chapter 22 Iterators in Java

OOPs Concepts

Chapter 1 Class and Object in Java
Chapter 2 Inheritance in Java
Chapter 3 Encapsulation in Java
Chapter 4 Polymorphism in Java
Chapter 5 Abstraction in Java
Chapter 6 Interface in Java
Chapter 7 Difference between Abstract Class and Interface

Exceptions in Java

Chapter 1 Exception Handling in Java
Chapter 2 Java Exceptions Tutorial: Built-in and User-defined Exceptions
Chapter 3 Flow control in try catch finally in Java
Chapter 4 Multiple Catch Exceptions
Chapter 5 Throw in Java
Chapter 6 Throws in Java

Data Handling (Excel Manipulation)

Chapter 1 How to download and install Apache POI
Chapter 2 Reading Excel Data with Apache POI in Java
Chapter 3 How to Write Data to Excel File in Java using Apache POI
Chapter 4 How to update existing excel in Java
Chapter 5 Java Excel Tutorial: Creating Excel with Formulas Using Apache POI
Chapter 6 Change Font Style in Excel with Apache POI – NEW

Multiple Choice Questions

Chapter 1 Multiple questions on Exception Handling in Java

Java Library

Chapter 1 AssertJ – Fluent Assertions in Java

Database

Chapter 1 How to install MySQL on Windows
Chapter 2 How to connect to SQL Server using Java
Chapter 3 How to insert data in SQL Server using Java

XML

Chapter 1 How to parse XML in Java

Chapter 2 How to retrieve XML Child Nodes in Java

Handling CSV File

Chapter 1 Mastering CSV File Handling in Java with OpenCSV – NEW

Handling Properties File

Chapter 1 How to read property file in Java

Chapter 2 How to Create and Modify Properties File in Java

Chapter 3 Java Properties: Storing and Writing Data in XML Format – NEW

Chapter 4 Update Specific Values in Java Properties File: Step-by-Step Guide – NEW

Handling PDFs

Chapter 1 Download PDF in Chrome with Selenium Java

Chapter 2 Download PDF in Firefox with Selenium Java

Chapter 3 Download PDF in Edge with Selenium Java

Chapter 4 Read PDF Files with Selenium in Java

Chapter 5 How to Write in PDF with Selenium and Java

Chapter 6 Merge PDF Files in Selenium with Java