Java Interview Help from Udemy

Sample of the reviews:

It looks really helpful, I will surely use those templates to showcase my own. I came here for java interview question but you reminded me that presentation skills are very imp to grab and opportunity and showcase the experience. Thanks a lot. - Hrishikesh Raverkar

So far the Best Java Web Dev Interview Prep course available on udemy. - Parth

All source code is available for download

Responsive Instructor - All questions answered within 24 hours

Professional video and audio recordings (check the free previews)

If you are a Java Developer preparing for an interview then this course is for you.This course is for students who have taken my java courses or any junior, mid level or senior java developers who want to crack java interviews.

Talking about You and Your project

Tell us about yourself

About Me Preparation Template

Your recent project

Common Core Java interview Questions

What are the important components of java

What are constructors

equals method vs operator

final finally and finalize

What are generics

Collections

What are the different collection Types

ArrayList vs LinkList

Vector vs ArrayList

HashMap vs LinkedHashmap

Failfast vs Failsafe Iterators

How to create a Generic Class

Producer Consumer Pattern

Comparable vs Comparator

What are concurrent collections

Multi Threading

How to create threads

What is Synchronization

What are class level locks

What are synchronized blocks

How do threads Communicate

Java 8

Features

What is a Lambda

What are Functional Interface

What is the Use Lambda

What is a Predicate

What are Predicate Joins

What is a Function

What are Default methods on interfaces

How to use Stream Filter

Other Methods on Stream

Map vs Filter

Java 9

What are private methods in interfaces

What are Immutable Collections

Stream API Updates

Enhancements to try with resource

Java 10

Features

What is var

Collectors API updates

Java 11

String API Updates

File API Updates

isEmpty method

Java 12

String API Updates

Compact Number Format

More Unicode Chars

Collectors API updates

Java 13 and 14 Features

What is instanceof Pattern Matching

What is a Record

What are Helpful NullPointerExceptions

What are Switch Expressions

Java 15 Features

What are Sealed Classes

Record Enhancements

Spring Boot

What is Dependency Injection and IOC

What are the Spring Bean Scopes

Prototype in Singleton

What are HTTP Scopes

What are the Problems with traditional spring

Why use Spring Boot

What is @SpringBootApplication

What is @SpringBootTest

Spring Data JPA and Hibernate

What is Spring Data JPA

How to use Spring Data JPA

Create Coupon Service Data Access Layer

Create Product Service Data Access Layer

What are the different Entity Object States

Wha are various JPA Associations

What is Cascading

What is Lazy Loading

What are two levels of caching

How to configure Second Level Cache

AOP

What is AOP

Wha is the AOP Terminology

Transaction Management

What is a Transaction

What are transaction ACID Properties

What are Distributed Transactions

What are the Transaction Isolation Levels

What is Optimistic vs Pessimistic Locking

Micro Services

What is a Monolithic Application

What are Microservices

Why Microservices

REST vs Messaging

REST API

What is REST

HTTP PUT vs POST and PATCH

How did you create REST API

Create Coupon Service REST API

Create Product Service REST API

Use RestTemplate

Test End To End

What are Spring Boot Profiles

SOAP Webservices

What is SOAP

What are the Java EE Web Service Standards

What are the Two Types of SOAP Design

What is WSDL

What is the WSDL Structure

What is the Top Down approach

What is the Bottom Up Design

What is a SOAP Client

What is MTOM

SOAP vs REST

Security

What are the Components of Spring Security

How did you secure your REST APIs

What is OAuth

What are the Key Components in OAuth

What is the OAuth Workflow

What are the OAuth Grant Types

What are the Different Grant Types

What is JWT

Hot to configure JWT

How to rotate tokens

How to use Tokens with Frontends

What is CSRF

How to prevent CSRFs

What is CORS

Java Messaging Service

What is messaging

Why Messaging

What is JMS

What is the a MDB

Design Patterns

What are the Design Patterns you have used

What are Singleton Best Practices

Testing

Wha is Unit Testing

What is Mocking

What are the various Testing Tools you have used

What are the important JUnit 5 and Mockito annotations

Devops

Continuous Integration vs Delivery vs Deployment

What is Jenkins

How to create a Jenkinsfile

What are the Steps to automate a deployment

How to passParams and Inputs to Jenkins Build

Build Tools

What the different Maven Scopes

snapshots vs release

How to Control Dependencies

How to Override a Transitive Dependency Version

Docker

What is Containerization

What is Docker

What are the Docker Components and Workflow

Why Docker

What are some of the Docker Commands you have used

What are Docker Volumes

Volumes vs Bind Mounts

How did you dockerize your application

What is docker compose

Kubernetes

What is Container Orchestration

What is Kubernetes

What is a Pod

What is a ReplicaSet

What is a Deployment

What is a Service

What are different Service Types

What are Namespaces

Explain Kubenetes Architecture

Volumes vs PV

What are PV and PVC

How to use a PVC

What are Config Maps and Secrets

AWS

What are Regions Zones and Edge Locations

What is EC2

What is a AMI

What are Spot Instances

Public vs Elastic IP

What are EC2 instance States

How to Connect to a linux instance

How to Secure Ec2 instance

How to do Load Balancing

How to use Auto Scaling

Create custom user

What is SNS

How to Send Notifications

What is Cloudwatch

S3 vs EBS vs EFS

What are the S3 Storage Classes

What is CloudFormation

RDS vs DynamoDB

What is Serverless

What is AWS Lambda

Spring Cloud

What is Spring Cloud

What is Service Registration and Discovery

How to use Eureka Server

How to do Client side Load Balancing

What is API Gateway

How to use API Gateway

What are Sleuth and Zipkin

What's inside

Learning objectives

How to talk about your experience and your project
Frequently asked core java interview questions
Collections and multithreading questions
Java 8 to latest feature review
Spring boot interview questions
Spring data jpa and hibernate interview questions
Microservice interview questions
Rest and soap

Jms - java messaging service
Maven interview questions
Docker interview questions
Kubernetes interview questions
Aws interview questions
And more
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How to talk about your experience and your project
Frequently asked core java interview questions
Collections and multithreading questions
Java 8 to latest feature review
Spring boot interview questions
Spring data jpa and hibernate interview questions
Microservice interview questions
Rest and soap
Jms - java messaging service
Maven interview questions
Docker interview questions
Kubernetes interview questions
Aws interview questions
And more
Show more
Show less

Syllabus

Introduction

Private Course Feedback Link

Notes Download

You,Your Resume and Your project

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Covers topics from core Java to Spring Boot, which are essential for Java developer roles

Includes questions about Spring Data JPA and Hibernate, which are commonly used in enterprise Java applications

Explores topics like Docker and Kubernetes, which are increasingly important for modern Java development and deployment

Discusses Java features up to Java 15, which helps candidates demonstrate knowledge of recent language updates

Reviews REST and SOAP web services, which are fundamental concepts for building Java-based APIs

Includes questions about AWS, which is a popular cloud platform for deploying Java applications

Reviews summary

Comprehensive java interview preparation

According to learners, this course is a relevant and comprehensive resource for Java interview prep. Students appreciate the broad topic range, from Core Java to frameworks like Spring Boot and Microservices, plus DevOps and cloud basics. It covers typical interview questions. Many found the templates for introductions and projects useful. While providing a solid overview for refreshing knowledge, some felt depth is limited for senior roles. Content covers Java up to version 15, so parts may need updates. Overall, a valuable preparation tool, particularly for junior to mid-level developers.

Depth is sufficient for some but not all learners.

"However, for someone with experience, the depth is often lacking."

"It's not a deep dive into any single area, but covers the common questions well."

"Useful for juniors maybe, but not enough for experienced developers."

Provides helpful templates for personal introductions.

"The templates provided for 'About Me' and project descriptions are very useful."

"The interview 'tell me about yourself' template was surprisingly helpful."

"I will surely use those templates to showcase my own. ...presentation skills are very imp..."

Covers a wide array of Java ecosystem topics.

"Covers a wide range of topics from core Java to Spring Boot, Microservices, and even DevOps basics like Docker/Kubernetes."

"The course touches upon a lot of technologies, which is good for getting a general idea of what might be asked."

"The variety of subjects covered is impressive."

Addresses common questions asked in interviews.

"Cracked my interview partly thanks to this course! It covered exactly the kind of questions asked..."

"It covered all the important areas for a Java interview."

"The sections on Java 8 features were spot on."

Reviewers desired more coding examples.

"The content feels a bit rushed, jumping from topic to topic without enough detail or coding examples."

"Some sections, like Java 8/9/10, could be a bit more in-depth with practical examples."

"I didn't feel prepared because there weren't enough coding examples or practical scenarios."

Some content may not reflect latest Java versions.

"Some parts seem a bit outdated considering newer Java versions are out."

"Java 15 is the latest version covered, but newer versions are out."

"I feel certain sections might need updates to reflect the latest language features and industry practices."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Java Interview Help with these activities:

Review Core Java Concepts

Show steps

Solidify your understanding of fundamental Java concepts to better grasp advanced topics covered in the interview preparation course.

Show steps

Review data types, operators, and control flow.
Practice writing basic Java programs.
Study object-oriented programming principles.

Cracking the Coding Interview

Show steps

Supplement your interview preparation with a review of common coding interview questions and problem-solving strategies.

View Cracking the Coding Interview on Amazon

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Read chapters relevant to Java and data structures.
Practice solving the coding problems in the book.
Analyze the provided solutions and explanations.

Solve LeetCode Problems on Collections

Show steps

Sharpen your problem-solving skills with Java Collections by tackling relevant LeetCode problems.

Show steps

Identify LeetCode problems related to Java Collections.
Implement solutions using ArrayList, LinkedList, HashMap, etc.
Analyze time and space complexity of your solutions.

Four other activities

Expand to see all activities and additional details

Show all seven activities

Create a Cheat Sheet on Java 8 Features

Show steps

Consolidate your knowledge of Java 8 features by creating a concise cheat sheet for quick reference during interviews.

Show steps

Identify key Java 8 features like Lambdas and Streams.
Summarize the syntax and usage of each feature.
Include code examples for each feature.

Build a Simple REST API with Spring Boot

Show steps

Gain hands-on experience with Spring Boot by building a REST API, reinforcing your understanding of key concepts.

Show steps

Set up a Spring Boot project with necessary dependencies.
Define REST endpoints and data models.
Implement CRUD operations using Spring Data JPA.
Test the API endpoints using Postman or similar tools.

Follow a Spring Security Tutorial

Show steps

Deepen your understanding of Spring Security by following a step-by-step tutorial on securing REST APIs.

Show steps

Find a reputable Spring Security tutorial online.
Implement the security features as described in the tutorial.
Test the secured API endpoints with different roles and permissions.

Effective Java

Show steps

Improve your Java coding skills by studying best practices and design patterns.

View Effective Java (3rd Edition) on Amazon

Show steps

Read chapters relevant to the topics covered in the course.
Apply the best practices to your own Java projects.
Reflect on how these practices can improve your code quality.

Career center

Learners who complete Java Interview Help will develop knowledge and skills that may be useful to these careers:

Java Developer

A Java developer specializes in creating, implementing, and maintaining software applications using the Java programming language. This Java Interview Help course is directly relevant, covering core Java, collections, multithreading, and the latest Java features. The course is ideal for a Java developer, addressing essential topics like Spring Boot, JPA, microservices, REST APIs, and SOAP web services. Aspiring Java developers will find that the interview-focused approach of this course gives them an advantage in the job market, helping lead to success.

See salaries and explore the career path for Java Developer

Software Engineer

A software engineer designs, develops, and maintains software systems. This Java Interview Help course provides a comprehensive overview of Java concepts, including core Java, collections, multithreading, and Java 8 to 15 features, all of which are essential for a software engineer working with Java. The course’s thorough review of Spring Boot, Spring Data JPA, and microservices also aligns perfectly with modern software engineering practices. Additionally, this course is valuable for those entering a software engineer role and will prepare them to answer a wide array of interview questions.

See salaries and explore the career path for Software Engineer

Backend Developer

A backend developer is responsible for the server-side logic, databases, and APIs of an application. This Java Interview Help course is exceptionally beneficial for a backend developer because it deeply explores Java technologies commonly used in backend development. This includes topics such as Spring Boot, Spring Data JPA, Hibernate, REST APIs, and microservices. A backend developer will find that the course's coverage of database interaction, transaction management, and security protocols is particularly relevant and beneficial.

See salaries and explore the career path for Backend Developer

Application Developer

An application developer is involved in the creation, testing, and maintenance of software applications. The Java Interview Help course is a strong fit for an application developer because Java is a popular platform for application development. This course covers essential topics such as core Java, collections, multithreading, and the latest Java features. The course also covers technologies like Spring Boot, database interaction with JPA, microservices and security. This course can help an application developer prepare for technical interviews as well.

See salaries and explore the career path for Application Developer

Full-Stack Developer

A full stack developer handles both the front-end and back-end components of a web application or other software. While this course focuses on Java, which is primarily used for backend development, the technologies covered are essential for a full stack developer. The Java Interview Help course thoroughly covers Spring Boot, REST APIs, and database interactions using JPA and Hibernate. A full stack developer who wants to expand their knowledge of backend technologies can use this course to understand crucial concepts and perform well in interviews.

See salaries and explore the career path for Full-Stack Developer

Software Architect

A software architect is responsible for the high-level design and structure of software systems. This Java Interview Help course may be useful for a software architect, particularly for any Java-centric project. The course introduces technologies such as Spring, microservices, and cloud deployments of Java applications. The depth of the course will ensure the software architect can understand the different parts of a Java system in order to design effective and efficient systems.

See salaries and explore the career path for Software Architect

Technical Lead

A technical lead is responsible for guiding a development team and ensuring the successful delivery of software projects. This Java Interview Help course may be useful for a technical lead who needs to stay abreast of the latest Java technologies and best practices. The course’s discussion of Spring, microservices, and cloud technologies can help a technical lead as the course ensures they have a strong understanding of the technologies that their team is using. Additionally, the interview preparation aspects of the course might help a lead conduct effective interviews, especially in the context of Java.

See salaries and explore the career path for Technical Lead

Cloud Engineer

A cloud engineer is an IT professional specializing in the implementation, management, and maintenance of cloud computing systems. This Java Interview Help course provides a valuable foundation for a cloud engineer, covering essential cloud-related technologies like AWS. The course also includes useful information about containerization with Docker and orchestration with Kubernetes. A cloud engineer may find that an understanding of Java and its related frameworks is useful as the course offers a solid technical background to better understand deployments in the cloud.

See salaries and explore the career path for Cloud Engineer

Technical Consultant

A technical consultant provides expert advice and guidance to clients on various technology-related matters. This Java Interview Help course may be useful to a technical consultant who needs to understand the technical aspects of Java or advise clients on how to build Java applications. The course covers important Java related topics such as Spring Boot, REST APIs, and microservices which will enable a consultant to discuss complex technical issues and guide clients to effective solutions. The consultant can learn to speak the same language as technical staff.

See salaries and explore the career path for Technical Consultant

Solutions Architect

A solutions architect designs and oversees the architecture of software systems to meet business needs. This Java Interview Help course may be useful for a solutions architect, particularly one who is working on Java-based projects. The course’s comprehensive coverage of Java, Spring Boot, microservices, and cloud technologies can help a solutions architect understand the various components and technologies at play. While not directly related to architecture, the course provides a good technical base for making informed design decisions.

See salaries and explore the career path for Solutions Architect

DevOps Engineer

A DevOps engineer automates and streamlines the software development lifecycle, from coding to deployment. This Java Interview Help course may be useful for a DevOps engineer looking to understand the various technologies involved in Java application development. It touches on areas of interest to this role including Docker, Kubernetes, and continuous integration/continuous delivery (CI/CD) using Jenkins. The course, while not directly a DevOps course, provides related knowledge of the frameworks and tools surrounding development.

See salaries and explore the career path for DevOps Engineer

Database Administrator

A database administrator manages and maintains database systems, ensuring data integrity and availability. While this Java Interview Help course is not primarily focused on database administration, it may be useful to a database administrator who works in a Java-centric environment. The course includes coverage of data persistence technologies, such as JPA and Hibernate, which will help with understanding how Java applications interact with databases. The database administrator can more effectively perform their job when they understand database interaction.

See salaries and explore the career path for Database Administrator

Quality Assurance Engineer

A quality assurance engineer is responsible for designing and executing tests to ensure software meets the required standards. A quality assurance engineer who tests Java applications may find this Java Interview Help course useful. Topics such as Spring Boot and REST APIs, which are thoroughly reviewed in this course, are commonly used in applications. This course may help a QA engineer understand the tech stack of a Java application better.

See salaries and explore the career path for Quality Assurance Engineer

Site Reliability Engineer

A site reliability engineer ensures that systems are reliable, scalable, and efficient. While not directly focused on site reliability engineering, this Java Interview Help may be useful to a site reliability engineer if they work in a Java-centric environment. The course provides familiarity with the Java language and related technologies. The course covers some DevOps technologies useful to a site reliability engineer, such as Docker and Kubernetes. The course can help a SRE debug or build tools in Java.

See salaries and explore the career path for Site Reliability Engineer

Data Engineer

A data engineer is responsible for designing, building, and maintaining data pipelines and infrastructure. While this Java Interview Help course is not directly focused on data engineering, it may be useful for a data engineer working in a Java environment. A data engineer who wishes to build custom data pipelines or services with Java can find value in the course, which will allow them to build data solutions using Java, Spring Boot, and related technologies. Although it is not a core skill for a data engineer, familiarity with the language can be useful.

See salaries and explore the career path for Data Engineer

Java Interview Help

What's inside

Learning objectives

Syllabus

Traffic lights

Save this course

Reviews summary

Comprehensive java interview preparation

Activities

Career center

Reading list

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