Java Core Review and Interview Guide

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Overview

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This course features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. Master Java concepts and ace your interviews with this comprehensive course, designed to review essential Java core topics. You'll dive deep into Java features from Java 10 to Java 24, including modularization, new APIs, pattern matching, and virtual threads. The course also covers in-depth Java interview preparation, focusing on key concepts like the JVM, memory management, garbage collection, and concurrency. You will also get a chance to explore advanced topics such as functional programming, collections, and thread safety. Throughout the course, you'll work through practical examples, learning how to apply Java's powerful features in real-world scenarios. The structured content ensures that you grasp essential concepts like object-oriented programming, exception handling, and Java platform fundamentals. By the end, you'll be well-prepared to tackle any technical interview or work on sophisticated Java projects. This course is ideal for developers looking to solidify their Java skills and for those preparing for Java-related job interviews. No prior expertise in advanced Java is required, but familiarity with basic Java concepts will help you progress smoothly. Get ready to take your Java knowledge to the next level!

Syllabus

New Course Additions – an Overview

In this module, we will introduce the new updates included in this course, focusing on advanced Java concepts like Spring, Spring Boot, and REST API. We will also explore how these technologies work together in building a comprehensive, real-world Java project.

Java New Features - Java 10 to Java 24

In this module, we will explore the new features introduced across Java versions from Java 10 to Java 24. We will cover modularization, the latest API enhancements, and advanced features such as records, pattern matching, and virtual threads.

Java Review (Interview) Guide - Getting Started

In this module, we will provide an overview of the Java interview and review guide. This section will help you prepare for technical discussions by focusing on core Java concepts and common interview questions.

Java Platform - Java Review (Interview) Guide

In this module, we will dive deep into the Java platform, covering its components and how they work together. We will also explore Java’s platform independence, memory management, and performance optimizations, key topics in Java interviews.

Java Landscape - Java Review (Interview) Guide

In this module, we will discuss the landscape of Java, its evolution, and the key components that make up the Java ecosystem. We will also highlight the release cadence and the importance of Long Term Support (LTS) versions.

Java Memory Management - Java Review (Interview) Guide

In this module, we will focus on Java’s memory management mechanisms. You will learn about memory allocation, garbage collection, and advanced techniques for optimizing memory usage in Java applications.

Java Object Oriented Concepts - Java Review (Interview) Guide

In this module, we will explore the fundamental object-oriented programming concepts in Java. You will also gain insight into design patterns, inheritance, and encapsulation, which are essential for Java interviews.

Java Object Oriented Programming Details - Java Review (Interview) Guide

In this module, we will dive deeper into object-oriented programming details, including common best practices for method implementations, object initialization, and the use of inner classes and marker interfaces.

Core Java in Depth - Java Review (Interview) Guide

In this module, we will cover core Java topics in depth, from wrapper classes and strings to text blocks and records. You will also gain insights into memory optimization techniques and best practices for core Java components.

Functional Programming - Java Review (Interview) Guide

In this module, we will delve into functional programming within Java, covering key concepts such as lambdas, streams, and functional interfaces. We will also explore advanced topics like parallel streams and higher-order functions.

Threads and Concurrency - Java Review (Interview) Guide

In this module, we will examine Java’s concurrency model, including thread creation, management, and synchronization. We will also explore advanced concurrency topics such as virtual threads and race condition solutions.

Collections - Java Review (Interview) Guide

In this module, we will explore Java collections in-depth, covering the key collection types and when to use them. We will also discuss concurrency, best practices, and performance considerations.

Generics - Java Review (Interview) Guide

In this module, we will introduce generics in Java, covering their practical applications and importance. We will also discuss type erasure and how to restrict types in generics for safer and more reusable code.

Modifiers - Java Review (Interview) Guide

In this module, we will explore the various modifiers in Java, including access, static, final, and abstract modifiers. You will learn how and when to use them effectively in Java applications.

Exception Handling - Java Review (Interview) Guide

In this module, we will examine Java's exception handling system, including its design patterns and best practices. You will learn how to handle exceptions effectively to ensure robust and maintainable Java applications.

Serialization - Java Review (Interview) Guide

In this module, we will cover the serialization process in Java, including techniques for serializing and deserializing objects. We will also discuss serialVersionUID and the use of the Externalizable interface.

Built-in Classes - Java Review (Interview) Guide

In this module, we will introduce several essential built-in Java classes, such as Object, System, and UUID, and explore their uses in Java development, especially in the context of system-level and multi-threaded applications.

Miscellaneous Topics - Java Review (Interview) Guide

In this module, we will cover a range of miscellaneous topics in Java, from using enums and assertions to the evolution of pattern matching and switch expressions. You will also learn about reflection and annotations.

New Features - Java Review (Interview) Guide

In this module, we will examine the new features added to Java in recent releases. You will learn about the primary goals behind these updates and the key features introduced in each version.

Java Interview and Review Guide - Thank You

In this final module, we will wrap up the Java review guide with closing remarks. You will reflect on everything you've learned and be ready to tackle Java interviews with confidence and expertise.