500 plus Core Java Interview Questions & Answers (Dev & QA)
Detailed and easy explanation of Core Java Interview Question asked in Top Companies along with practical demonstration
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🕔 65 Hour(s)

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👨‍🏫 Arun Motoori

Building Role-Based Access using AI for Java Developers
Master role-based access control (RBAC) by building a GitHub-inspired authorization system using Java Spring Boot.
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🕔 2 Hour(s)

🎓 INTERMEDIATE

👨‍🏫 Harit Himanshu

Java SE 21 Developer (Exam 1Z0-830): Controlling Program Flow

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🕔 01:46:40

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👨‍🏫 Andrejs Doronins

Java SE 21 Developer | Oracle Certified Professional 1Z0-830
Oracle 1Z0-830 | Java SE 21 Developer Certification Exam Prep Course with Lambda Expression & Java Collections Framework
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🕔 35 Hour(s)

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👨‍🏫 OAK Academy Team, Mehmet ÖNGEL

OpenTelemetry: Observability with Java

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🕔 01:22:55

🎓 Beginner

👨‍🏫 Bogdan Sucaciu

Java SE 21 Developer (Exam 1Z0-830): Implementing Localization

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🕔 00:49:49

🎓 Beginner

👨‍🏫 Maaike van Putten

Java SE 21 Developer (Exam 1Z0-830): Object-oriented Programming

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🕔 02:42:47

🎓 Beginner

👨‍🏫 Dan Geabunea

Java SE 21 Developer (Exam 1Z0-830): Arrays and Collections

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🕔 01:30:02

🎓 Beginner

👨‍🏫 Dan Bunker

Java SE 21 Developer (Exam 1Z0-830): Streams and Lambda Expressions

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🕔 01:02:11

🎓 Beginner

👨‍🏫 Jesper de Jong

Java SE 21 Developer (Exam 1Z0-830): Concurrent Programming

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🕔 01:03:39

🎓 Beginner

👨‍🏫 Catalin Tudose

Java Records and Pattern Matching

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🕔 00:49:31

🎓 Intermediate

👨‍🏫 Jesper de Jong

Java SE 21 Developer (Exam 1Z0-830): Data Types

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🕔 02:00:14

🎓 Beginner

👨‍🏫 Esteban Herrera

Java SE 21 Developer (Exam 1Z0-830): Java I/O and File Handling

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🕔 01:28:04

🎓 Beginner

👨‍🏫 Andrejs Doronins

Java Mastery | Multithreading, Collections, Streams, Lambdas
Master Core Java Features: Java Collections, Java Multithreading, Lambda Expressions and Stream API for modern web apps
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🕔 13 Hour(s)

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👨‍🏫 OAK Academy Team

The Complete Core Java Course : Learn to Code
Learn Java from scratch. Ideal for testing professionals transitioning to DevOps or Automation. Java for Selenium.
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🕔 10 Hour(s)

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👨‍🏫 Dezlearn Education

From Java to AI: The Python-Free Guide to AI and LLMs
A Complete Code-Free Introduction to Core LLM concepts
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🕔 5 Hour(s)

🎓 Beginner

👨‍🏫 Koushik Kothagal

Spring Boot with Postgres and React in 3 hrs.
Spring Boot with Postgres & React
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🕔 3 Hour(s)

🎓 Beginner

👨‍🏫 Patrick Videos

Selenium WebDriver with Java from scratch: Zero To Hero
Complete Web Automation Testing course including Selenium, Java, TestNG, Maven, Git & XPath CSS from scratch
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🕔 27 Hour(s)

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👨‍🏫 Akhil Jain

Core Java Programming in 2025 - Part 2
Master Object-Oriented Programming in Java: Learn Classes, Objects, Inheritance, Polymorphism, Interfaces & More
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🕔 1 Hour(s)

🎓 Beginner

👨‍🏫 Cipher Schools

Java Multithreading and Concurrency from Basics to Advanced
Java Multithreading, Java Concurrency and Parallelism with real-world projects, best practices and performance tuning
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🕔 7 Hour(s)

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👨‍🏫 OAK Academy Team, Mehmet ÖNGEL

Java Programming + LEETCODE Crash Course
Go From Beginner to Cracking LEETCODE in a Few Hours — Animated Lessons!
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🕔 3 Hour(s)

🎓 Beginner

👨‍🏫 Scott Barrett