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Java 8 Interview Questions with Real-Time Examples
Java 8 introduced powerful features like Lambda Expressions, Streams, and Functional Interfaces—but are you truly ready to answer real interview questions?This guide covers the most frequently asked Java 8 interview questions with clear explanations and practical examples to help you crack your next interview with confidence. Program1 : Write a program that, given a list of integers, extracts and returns only the even numbers from the input collection. Program2 : Write a program to Find the maximum number of given list using java8 Program3: Write a program to Find duplicate elements in a list What is Collections.frequency()?. It counts how many times an element (o) appears in a collection (c).frequency()…
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SOLID Design Principles in Java – A Complete Guide with Examples
SOLID is a set of five object-oriented design principles that help developers design clean, maintainable, scalable, and flexible software systems. These principles reduce tight coupling between classes, improve code readability, and make applications easier to extend and test. It is a set of 5 object-oriented design principles that help you write clean, maintainable, scalable, and testable Java code. Design patterns are often built on top of SOLID principles. 1.Single Responsibility Principle (SRP) there should never be more than one functionality for a class to change , single responsibility focused , single logic/functionality addresses a specific concern . Example: We have written a code in a single class that code is…