Mastering Modern Java Programming: Beginner to Pro [2026] (Udemy.com)

Welcome to the course Mastering Modern Java Programming: Beginner to Pro, a comprehensive course designed to equip developers of all levels with the essential skills and knowledge to master Java programming from its fundamentals to advanced topics up to Java 25. Whether you're a beginner looking to kickstart your programming journey or an experienced developer seeking to enhance your Java expertise, this course has something valuable to offer.

Course Overview:

This course is meticulously crafted to cover every aspect of Java programming in-depth, ensuring a solid understanding of both the foundational concepts and the latest advancements in the language. Here's what you can expect to learn throughout the course:

Section 1: Let's Say Hello to Java

• What is Java & why should you learn

• Approach to learn Java language

• Writing your first Java statement using jshell

• Brief history of Java & it's release timeline

• Why do we have different JDK vendors in Java ecosystem

• Installation of Java

Section 2: Primitive data types in Java

• Introduction to Java Keywords

• Deep dive on byte, short, int, long, float, double data types

• Syntax to declare primitive data types & store data using them

• How to name a java variable

• Case Styles in programming

• Deep dive on boolean primitive data type

• Deep dive on char primitive data type

• Demo of Overflow and Underflow

• [Java 7] Using underscore in numeric literals

• Demo of octal number format in Java

• Demo of hexa number format in Java

• Demo of binary number format in Java

• Type casting in Java

• Demo of implicit and explicit casting

• Introduction to String in Java

• Demo of String in Java

Section 3: What happens behind the scenes when a Java program executes

• Introduction to life cycle of a Java program

• What is JDK, JRE, JVM

• How Java became a platform independent language

• Introduction to Java program code structure

• Writing first Java class, compiling & running it

• Introduction to IDE & IntelliJ IDEA

• Create first Java project in IntelliJ & set up a theme

• Writing first Java class in IntelliJ

Section 4: Deep dive on Java classes, methods, fields, constructors

• Java supports Object-oriented programming (OOP)

• Demo of creating a Java class

• Declaring fields in a Java class

• Demo of Java methods

• Introduction to method signature

• Purpose of a return statement in Java methods

• Syntax of method invocation in Java

• Let’s say hi to main method again

• How to create & initialize Java objects

• Introduction to Constructor in Java

• Demo of Constructor in Java & introduction to debugging

• Problem with default or no-args constructor

• Constructor Overloading in Java

• Constructor chaining in Java

• Usage of return statement in constructor

• Instance Initialization Block in Java class - Part 1

• Instance Initialization Block in Java class - Part 2

• Introduction to static variables in Java

• How to define constant final static variables

• Differences between static & instance variables

• Introduction to static methods in Java

• Static Initialization Block in Java class

• Debugging of method invocations in IntelliJ

• Where does Java store classes, objects, variables, methods

• Deep dive on Heap memory and stack memory

• Introduction to null in Java

• Object Destruction and Garbage collection in Java

• Class vs Object vs Instance vs Reference

• What is encapsulation in Java

Section 5: Comments in Java

• Single line Comments in Java

• Multi line Comments in Java

• Introduction to javadoc comments

• Generating javadoc using IntelliJ

Section 6: Deep dive on String in Java

• Introduction to String Pool in Java

• The intern method in String

• The concat method in String

• Escape sequence character & Unicode char values in String

• Finding the length of a String

• Comparing Strings in Java

• Fetching a character at an index in String

• Checking if a String is empty

• Changing the case in String

• Converting values as String

• Searching for a value in String

• Trimming a String

• Fetching Substring from a String

• Replacing a part of a String

• Splitting Strings

• [JAVA 8] Joining Strings

• The format() method in String

• System.out.printf() method

• Understanding how String objects are immutable

• How to create mutable strings in Java

• [JAVA 15] Text Block in Java

• Converting String to primitive data type values

• Convert String to double data type

Section 7: Operators in Java

• Introduction to Operators & Operands in Java

• Assignment Operator in Java

• Introduction to Arithmetic Operators in Java

• Addition Operator in Java

• String Concatenation Operator

• Division Operator in Java

• Modulus Operator in Java

• Unary plus and minus operators

• Compound Arithmetic Assignment Operators in Java

• Increment and Decrement operators in Java

• Introduction to Relational Operators in Java

• Equality Operator in Java

• Inequality Operator in Java

• Greater than, Greater than or equal, Less than, Less than or equal operators

• Introduction to Logical Operators in Java

• Logical NOT operator in Java

• Logical Short-Circuit AND, Logical AND operators in Java

• Logical Short-Circuit OR, Logical OR operators in Java

• Logical XOR operator in Java

• Compound Logical Assignment Operators in Java

• Bitwise Operators in Java

• Bitwise NOT operator or 1’s complement in Java

• Bitwise AND operator in Java