--- title: "#java-interview-questions articles | Hashnode" description: "Explore 83 articles tagged #java-interview-questions on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/java-interview-questions" --- Tag # #java-interview-questions 83 posts · 11 followers [EJ Jung](https://hashnode.com/@ejjung) · [Mar 3](https://hashnode.com/posts/java-stack-vs-heap/69a68e8dd4dc9b424346c924) ### [Stack vs Heap](https://ejjung.hashnode.dev/java-stack-vs-heap?utm_source=hashnode&utm_medium=feed) 0\. Introduction Understanding the difference between Stack and Heap memory is one of the most fundamental concepts in Java. In this article, we will explore how Stack and Heap work, and the difference 2 min read · [ejjung.hashnode.dev](https://ejjung.hashnode.dev/java-stack-vs-heap?utm_source=hashnode&utm_medium=feed) [Ajit Marathe](https://hashnode.com/@automationwithajit) · [Jan 6](https://hashnode.com/posts/top-java-interview-questions-for-automation-testers-real-world-explanations-common-mistakes-and-clean-code-examples-part-2/695d403f9a0ee76fdfd3b04a) ### [Top Java Interview Questions for Automation Testers – Real-World Explanations, Common Mistakes, and Clean Code Examples | Part 2](https://automationwithajit.hashnode.dev/top-java-interview-questions-for-automation-testers-real-world-explanations-common-mistakes-and-clean-code-examples-part-2?utm_source=hashnode&utm_medium=feed) Top Java Interview Questions for Automation Testers (Part 2) – Real-World Scenarios, Common Mistakes & Clean Code 5 min read · [automationwithajit.hashnode.dev](https://automationwithajit.hashnode.dev/top-java-interview-questions-for-automation-testers-real-world-explanations-common-mistakes-and-clean-code-examples-part-2?utm_source=hashnode&utm_medium=feed) [Ajit Marathe](https://hashnode.com/@automationwithajit) · [Jan 2](https://hashnode.com/posts/top-java-interview-questions-for-automation-testers-with-real-world-explanations-common-mistakes-and-clean-code-examples-part-1-of-the-series/6957ee284838309ada6c5131) ### [🚀Top Java interview questions for automation testers with real-world explanations, common mistakes, and clean code examples. Part 1 of the series.](https://automationwithajit.hashnode.dev/top-java-interview-questions-for-automation-testers-with-real-world-explanations-common-mistakes-and-clean-code-examples-part-1-of-the-series?utm_source=hashnode&utm_medium=feed) Read This Before Your Next Automation Interview (Seriously.) Let’s cut the nonsense. Automation interviews don’t reject you because you don’t know Selenium, Appium, or APIs.They reject you because you sound like everyone else. Same definitions.Same t... 9 min read · [automationwithajit.hashnode.dev](https://automationwithajit.hashnode.dev/top-java-interview-questions-for-automation-testers-with-real-world-explanations-common-mistakes-and-clean-code-examples-part-1-of-the-series?utm_source=hashnode&utm_medium=feed) [Code4Coder](https://hashnode.com/@code4coder) · [Dec 17, 2025](https://hashnode.com/posts/java-7-j2se-7the-dolphin-release-that-modernized-java-development/6942f6ce7183a45d6095c9a5) ### [Java 7 (J2SE 7)—The Dolphin Release That Modernized Java Development](https://www.code4coder.neokasva.com/java-7-j2se-7the-dolphin-release-that-modernized-java-development?utm_source=hashnode&utm_medium=feed) Java 7 (J2SE 7) Dolphin Release explained with features, examples, NIO.2, Fork/Join, try-with-resources, multi-catch, strings in switch, advantages, and lim 4 min read · [code4coder.neokasva.com](https://www.code4coder.neokasva.com/java-7-j2se-7the-dolphin-release-that-modernized-java-development?utm_source=hashnode&utm_medium=feed) [Suraj Kumar](https://hashnode.com/@surajprasad) · [Aug 23, 2025](https://hashnode.com/posts/day-2-environment-setup-and-hello-world/68a9d04cb3777272aabcbad8) ### [Day 2 – Environment Setup & Hello World](https://javaday2.hashnode.dev/day-2-environment-setup-and-hello-world?utm_source=hashnode&utm_medium=feed) Learn to set up your environment for Java development with JDK essentials and create your first 'Hello World' program 9 min read · [javaday2.hashnode.dev](https://javaday2.hashnode.dev/day-2-environment-setup-and-hello-world?utm_source=hashnode&utm_medium=feed) [Tpoint Tech Blog](https://hashnode.com/@Tpointtechblog) · [Jul 21, 2025](https://hashnode.com/posts/java-interview-questions-that-top-companies-ask/687e1cb3d9b41465692999fb) ### [Java Interview Questions That Top Companies Ask](https://tpointtechblog.hashnode.dev/java-interview-questions-that-top-companies-ask?utm_source=hashnode&utm_medium=feed) Java remains one of the most in-demand programming languages in the tech world. From startups to top-tier companies like Google, Amazon, and Infosys — Java developers are constantly being hired to build scalable, high-performance applications. If you... 4 min read · [tpointtechblog.hashnode.dev](https://tpointtechblog.hashnode.dev/java-interview-questions-that-top-companies-ask?utm_source=hashnode&utm_medium=feed) [Anni Huang](https://hashnode.com/@HuangAnni) · [Jul 3, 2025](https://hashnode.com/posts/core-java-fundamentals-for-any-interviews/68661e85c712452723aca647) ### [Core Java Fundamentals for Interviews](https://huanganni.hashnode.dev/core-java-fundamentals-for-any-interviews?utm_source=hashnode&utm_medium=feed) Core OOP Concepts, Java 8+ Features, Multithreading & Concurrency, and System Design 3 min read · [huanganni.hashnode.dev](https://huanganni.hashnode.dev/core-java-fundamentals-for-any-interviews?utm_source=hashnode&utm_medium=feed) [Harshit Singh](https://hashnode.com/@HarshitSingh025) · [Jun 26, 2025](https://hashnode.com/posts/why-java-is-platform-independent/685d0a384d83d090059ff064) ### [Why Java is platform independent?](https://java-harshitsingh.hashnode.dev/why-java-is-platform-independent?utm_source=hashnode&utm_medium=feed) Learn why Java is platform independent with simple examples. Understand how bytecode and JVM make Java portable across operating systems. 1 min read · [java-harshitsingh.hashnode.dev](https://java-harshitsingh.hashnode.dev/why-java-is-platform-independent?utm_source=hashnode&utm_medium=feed) [Mahesh Sharma](https://hashnode.com/@tpointtech) · [Jun 23, 2025](https://hashnode.com/posts/why-java-is-still-in-demand/68593a06d52a1ffb478b90e4) ### [Why Java is Still in Demand in 2025?](https://tpointtech.hashnode.dev/why-java-is-still-in-demand?utm_source=hashnode&utm_medium=feed) Java remains the safest and smartest choice for 2025 to learn programming. I suggest you check out the Java tutorial on Tpoint Tech Website. 5 min read · [tpointtech.hashnode.dev](https://tpointtech.hashnode.dev/why-java-is-still-in-demand?utm_source=hashnode&utm_medium=feed) [peeter jon](https://hashnode.com/@peeter271) · [May 30, 2025](https://hashnode.com/posts/common-java-interview-questions-and-how-to-answer-them/683961547f643c186f8050d0) ### [Common Java Interview Questions and How to Answer Them](https://peeterjon.hashnode.dev/common-java-interview-questions-and-how-to-answer-them?utm_source=hashnode&utm_medium=feed) Java continues to be one of the most widely used programming languages in enterprise environments. From web applications to backend systems, its strong typing, portability, and robust frameworks make it a preferred choice for developers and employers... 2 min read · [peeterjon.hashnode.dev](https://peeterjon.hashnode.dev/common-java-interview-questions-and-how-to-answer-them?utm_source=hashnode&utm_medium=feed)