-
What Are Anonymous Classes in Java and When to Use Them?
An anonymous class in Java is a class without a name that is both defined and instantiated in a single expression. Developers commonly use anonymous classes to create instances of classes or implement interfaces without writing a separate named class. This helps in writing cleaner and more concise code, especially for short-term or one-time use cases in Java programming. Characteristics of Anonymous classes Anonymous class is Example: Example without Anonymous class 1. Greeting.java (Interface) 2. GreetingImpl.java (Interface Implementation) 3. DemoTest.java Example: Example with Anonymous class 1. Greeting.java (Greeting Interface) 2. DemoTest.java
-
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()); 6. Method References 7. Optional Class 8. New Date and Time API (java.time package) 9. Collectors Class 10. ForEach() Method
-
What is application
An application refers to a program or software designed to perform specific tasks for users. Applications can range from simple tools like calculators to complex systems such as enterprise resource management platforms. Types of Applications To develop distributed application we use a language called java and java comes under internet software. Architecture required for development of distributed application , programmer must use a well known Architecture known as client server architecture . 2-Tier Architecture Two tier Architecture it contains client and server side programing . 3-Tier Architecture Three tier architecture it contains client , server program and database software n-Tier Architecture n tire architecture it contains client program , fire wall program(security…
-
Eye opener of software beginner
Before starting the development of any web application, it is crucial for beginners to consider the following key points. 1. Presentation Layer (Frontend) Purpose: Handles the user interface and user experience. Components: Responsibilities: 2. Business Logic Layer (Backend) 3. Data Access Layer (DAL) 4. Database Layer 5. Security Layer