-
Functional Programming in Java Using Lambda Expressions
A lambda expression is a short and concise way to represent an anonymous function—a function without a name . Key Features 1.Why Lambda expression required Lambda expression required to enable functional programming ,lambda expression allow you to define small functions without naming them . this is useful when the function is simple and used only once or a few times . Lambda Syntax : 2.Lambda Expression Example Example 1: Addition of Number Without Lambda Expressions With Lambda Expressions Example 2: Find the length of String without Lambda Expressions With Lambda Expression if single statements are there then curly bracket not required , if body contained multiple lines of code then…
-
Java 8 Features
Java 8 was introduced to modernize Java by adding functional programming features, improving performance, and making the language more concise, readable, and expressive. It aimed to reduce boilerplate code, improve parallel processing, and enable more declarative coding styles—especially important for handling large data collections and multi-core processors. Lambda Expressions 2. Functional Interfaces 3. Default Method in Interface 4.Static Method in Interface Interface MyInterface { default void show() { System.out.println("Default method"); }} 5. Stream API list.stream().filter(s -> s.startsWith("A")).collect(Collectors.toList()); Intermediate (Non-Terminal) operations Example : Terminal operations 6. Method References 7. Optional Class 8. New Date and Time API (java.time package) Old API problems: New API advantages: 9. Collectors Class Commonly Used Collectors…