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Core Java
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Write Your Own Immutable Class In Java
Write Your Own Singleton Class In java
Java Concurrent Package
Java Stream Revisited
Print odd and even numbers using thread
SOLID principles
Comparable Vs Comparator
Sort HashMap/TreeMap based on value
Deep and Shallow Copy in Java with examples
Find the frequency of each character in a String
How to avoid duplicate Employee objects in HashSet ?
Spring
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Loose Coupling & Dependency Injection
Bean Scope
Spring Bean Lifecycle
IoC Container Vs Application Context Vs Bean Factory
@Component Vs @Service @Repository Vs @Controller
How to read properties file in Spring
Spring AOP (Aspect Oriented Programming)
@Component Vs @Bean in Spring
Exception Handling in SpringBoot
XML configuration Vs Annotations configuration in Spring
Spring Data JPA
Spring Data REST
Spring Security
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Spring Security with Form, Basic and JWT
Security Configuration in Spring Boot Apps
Security Protocols & Frameworks
Okta OAuth 2.0 SSO with Springboot
Spring Boot 2.x Security using Username Password
Spring Boot 2.x Security using JWT
Spring Boot 3.x Security using Username Password
Spring Boot 3.x Security using JWT
Microservices
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Spring Cloud Config (Server & Client)
Spring Boot Microservices Tutorial (Part 1 of 2)
Spring Boot Microservices Tutorial (Part 2 of 2)
Circuit Breaker – Resilience4j
The Twelve-Factor App Principles
Event Driven Microservices
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What is Event Driven Microservice ?
What is Saga Design Pattern ?
What is CQRS Design Pattern ?
Hibernate & JPA
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JPA vs JDBC
CRUD Example Using Spring Boot JPA + H2 + Gradle
MongoDB Atlas With Spring Boot Example
Transaction Management
Relationships in JPA & Hibernate
Hibernate First & Second Level Cache
Spring Boot Flyway Postgres
DevOps
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What is Devops ?
Docker
Kubernetes (K8S)
Jenkins
Infrastructure As Code
Functional Programming
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Functional Programming Vs Structured Programming
Java 8 Programs For Interview
Predicate, Function, Consumer and Supplier in Java 8
Sort a List having Employee objects using Java 8
Find Employee from List using Java 8
AWS
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AWS S3
AWS EC2
EC2 Solutions Architecting
How to create an EC2 instance ?
How to connect to AWS EC2 instance ?
Deploy application to AWS
AWS Lambda Java Tutorial
Spring Cloud Functions
How to Start/Stop AWS ECS automatically using Java Spring?
Container Solution in AWS
AWS SQS, SNS, MQ and Kinesis
Databases in AWS
AWS VPC: Peering, Endpoint, VPN, Gateways- Internet, NAT, DX
Machine Learning in AWS
Storage Solutions in AWS
AWS ASG (Auto Scaling Group)
AWS Certifications
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SAA-C03
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Design Cost-Optimized Architectures
AWS Certified Solution Architect-Associate
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Question 1
Kafka
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Apache Kafka
Kafka Producer & Consumer Example Using Spring boot & Conduktor
Angular
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Angular Tutorial – Part 1
Angular Tutorial – Part 2
Miscellaneous
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How to add a project to Git/GitHub/GitLab
How to Clone a project from Git/GitLab using Git Bash
How to query Oracle tables based on some date ?
How to highlight text in WordPress ?
How to add Page Jumps in WordPress page ?
Interview Preparation
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Core java interview questions
Java Threads Interview Questions
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