Functional Interfaces and Lambda Expressions
Explore the role of functional interfaces and lambdas in modern Java, enhancing code expressiveness and conciseness.
Nested Classes in Java: Static, Inner, Local, Anonymous
Learn how nested classes in Java work and how static, inner, local, and anonymous classes improve structure and encapsulation
Access Collections Concurrently: Two Java Approaches
Learn how to access collections concurrently in Java using synchronized wrappers and built-in concurrent collections for safer, scalable code
Sort Collections With Comparable and Comparator
Learn how to sort collections in Java using Comparable and Comparator, and choose the right approach for clean and efficient ordering.
Using Iterators and the for-each Loop Safely
Learn safe Java iteration with iterators and the for-each loop while avoiding common errors like ConcurrentModificationException.
The Comparator Interface in Java
Learn how the Comparator interface enables custom sorting in Java with examples for TreeSet, TreeMap, and PriorityQueue
The Comparable Interface in Java
Understand the Comparable interface in Java and learn how natural ordering and compareTo improve sorting and object ordering.
Custom Exception Classes: When and How to Create Them
Master error handling with Custom Exception. Learn when and how to create them for clearer, more robust and maintainable application code
Declaring and Throwing Exceptions in Java: A Practical Guide
When to Throw Exception vs declare throws in Java. Practical rules, examples, and best practices for robust, readable, testable APIs
Exception Hierarchy in Java: Checked, Unchecked, and Errors
Learn the Java Exception Hierarchy, including checked, unchecked, and errors, to handle exceptions effectively in your code.