Blog by Rahul Mittal

Introduction One of the biggest criticisms of Java before version 8 was the amount of boilerplate code required to process collections. Simple tasks such as filtering employees, sorting records, transforming objects, grouping data, or calculating totals often required multiple loops, temporary collections, explicit iterators, and verbose conditional logic. As applications grew larger, collection-processing code became increasingly difficult to read and…

Introduction In the previous article, we learned how Lambda Expressions dramatically simplified Java code by allowing us to pass behavior instead of creating verbose anonymous classes. However, there is an important question that remains unanswered: How does the Java compiler know what a Lambda Expression actually represents? Consider the following code: name -> System.out.println(name); Is this Lambda: Printing a string?…