Java forEach(): Iterate a List, Set or Map With Examples
Java forEach() on List, Set and Map with Consumer and BiConsumer, iteration order, forEach vs for loop, break and ConcurrentModificationException
ArrayList forEach() in Java: Lambdas, Limits and Examples
ArrayList forEach() runs a Consumer on each element. Learn method references, andThen(), break and index workarounds, CME rules and Map.forEach().
Java do-while Loop with Examples (vs while Loop)
Learn the Java do while loop with examples, the trailing semicolon, input validation, the continue trap, compareAndSet retries and do-while vs while.
Java while Loop: Syntax, Examples and Infinite Loops
Learn the Java while loop with examples for reading input, iterators and queues, infinite loops, while vs for vs do-while, and a payment retry example.
Java for-each Loop (Enhanced for Loop) with Examples
Learn the Java for-each loop over arrays, lists, sets and maps, why the loop variable is a copy, safe removal, custom Iterable classes and reverse order.
Java for Loop: Syntax, Examples and Common Mistakes
Learn the Java for loop with its execution order, counting down, steps, two variables, nested loops, batches and the mistakes that cause wrong results.