Java Roadmap
|
|-- Fundamentals
| |-- Basics of Programming
| | |-- Introduction to Java
| | |-- Java Development Kit (JDK) and Java Runtime Environment (JRE)
| | |-- Setting Up Development Environment (IDE: IntelliJ IDEA, Eclipse, etc.)
| |
| |-- Syntax and Structure
| | |-- Basic Syntax
| | |-- Variables and Data Types
| | |-- Operators and Expressions
|
|-- Control Structures
| |-- Conditional Statements
| | |-- If-Else Statements
| | |-- Switch Case
| |
| |-- Loops
| | |-- For Loop
| | |-- While Loop
| | |-- Do-While Loop
| |
| |-- Exception Handling
| | |-- Try-Catch Block
| | |-- Finally Block
| | |-- Throw and Throws Keywords
|
|-- Object-Oriented Programming (OOP)
| |-- Basics of OOP
| | |-- Classes and Objects
| | |-- Methods and Constructors
| |
| |-- Inheritance
| | |-- Single and Multiple Inheritance
| | |-- Method Overriding
| | |-- Super Keyword
| |
| |-- Polymorphism
| | |-- Method Overloading
| | |-- Runtime Polymorphism
| | |-- Dynamic Method Dispatch
| |
| |-- Encapsulation
| | |-- Access Modifiers (Public, Private, Protected)
| | |-- Getters and Setters
| | |-- Data Hiding
| |
| |-- Abstraction
| | |-- Abstract Classes
| | |-- Interfaces
|
|-- Advanced Java
| |-- Collections Framework
| | |-- List (ArrayList, LinkedList)
| | |-- Set (HashSet, TreeSet)
| | |-- Map (HashMap, TreeMap)
| | |-- Queue (PriorityQueue, LinkedList)
| |
| |-- Concurrency
| | |-- Multithreading (Creating Threads, Thread Lifecycle)
| | |-- Synchronization
| | |-- Concurrency Utilities (Executors Framework, Callable and Future, Locks and Semaphores)
|
|-- Java Standard Libraries
| |-- I/O Streams
| | |-- File Handling (File Class, Reading and Writing Files)
| | |-- Streams (Byte Streams, Character Streams, Buffered Streams)
| |
| |-- Networking
| | |-- Sockets (TCP and UDP, Socket and ServerSocket Classes)
| | |-- URL and HTTP (URL Class, HttpURLConnection)
| |
| |-- JDBC
| | |-- Database Connectivity (JDBC Drivers, Connection, Statement, and ResultSet)
| | |-- PreparedStatement and CallableStatement
|
|-- Java Frameworks
| |-- Spring Framework
| | |-- Spring Core (Dependency Injection, Inversion of Control)
| | |-- Spring MVC (Model-View-Controller Architecture)
| | |-- Spring Boot (Creating Spring Boot Applications, Starters and Auto-Configuration, Actuator)
| |
| |-- Hibernate
| | |-- ORM Basics (Introduction to ORM, Configuration and Mapping)
| | |-- Advanced Hibernate (Caching, Transactions and Concurrency, Criteria API)
|
|-- Web Development with Java
| |-- Java EE (Jakarta EE)
| | |-- Servlets (Lifecycle, Handling HTTP Requests and Responses, Session Management)
| | |-- JavaServer Pages (JSP) (Syntax, Directives, JSTL and Custom Tags, Expression Language)
| |
| |-- RESTful Web Services
| | |-- JAX-RS (Creating RESTful Services, Annotations and HTTP Methods, Consuming RESTful Services)
|
|-- Build Tools and Dependency Management
| |-- Maven
| | |-- Project Object Model (POM), Dependencies, Repositories, Build Lifecycle and Plugins
| |
| |-- Gradle
| | |-- Build Scripts, Dependency Management, Task Automation
|
|-- Testing in Java
| |-- Unit Testing
| | |-- JUnit (Annotations, Assertions, Test Suites and Runners)
| |
| |-- Mockito (Creating Mocks and Spies and Verification)
| |
| |-- Integration Testing
| | |-- Spring Test (Testing Spring Components and WebTestClient)
|
|-- Deployment and DevOps
| |-- Containers and Microservices
| | |-- Docker (Dockerfile, Image Creation, Container Management)
| | |-- Kubernetes (Pods, Services, Deployments, Managing Java Applications on Kubernetes)
Free books and courses to learn Java๐๐
https://bit.ly/3hbu3Dg
https://bit.ly/3BSHP5S
https://t.me/Java_Programming_Notes
Join @free4unow_backup for more free courses
ENJOY LEARNING๐๐
|
|-- Fundamentals
| |-- Basics of Programming
| | |-- Introduction to Java
| | |-- Java Development Kit (JDK) and Java Runtime Environment (JRE)
| | |-- Setting Up Development Environment (IDE: IntelliJ IDEA, Eclipse, etc.)
| |
| |-- Syntax and Structure
| | |-- Basic Syntax
| | |-- Variables and Data Types
| | |-- Operators and Expressions
|
|-- Control Structures
| |-- Conditional Statements
| | |-- If-Else Statements
| | |-- Switch Case
| |
| |-- Loops
| | |-- For Loop
| | |-- While Loop
| | |-- Do-While Loop
| |
| |-- Exception Handling
| | |-- Try-Catch Block
| | |-- Finally Block
| | |-- Throw and Throws Keywords
|
|-- Object-Oriented Programming (OOP)
| |-- Basics of OOP
| | |-- Classes and Objects
| | |-- Methods and Constructors
| |
| |-- Inheritance
| | |-- Single and Multiple Inheritance
| | |-- Method Overriding
| | |-- Super Keyword
| |
| |-- Polymorphism
| | |-- Method Overloading
| | |-- Runtime Polymorphism
| | |-- Dynamic Method Dispatch
| |
| |-- Encapsulation
| | |-- Access Modifiers (Public, Private, Protected)
| | |-- Getters and Setters
| | |-- Data Hiding
| |
| |-- Abstraction
| | |-- Abstract Classes
| | |-- Interfaces
|
|-- Advanced Java
| |-- Collections Framework
| | |-- List (ArrayList, LinkedList)
| | |-- Set (HashSet, TreeSet)
| | |-- Map (HashMap, TreeMap)
| | |-- Queue (PriorityQueue, LinkedList)
| |
| |-- Concurrency
| | |-- Multithreading (Creating Threads, Thread Lifecycle)
| | |-- Synchronization
| | |-- Concurrency Utilities (Executors Framework, Callable and Future, Locks and Semaphores)
|
|-- Java Standard Libraries
| |-- I/O Streams
| | |-- File Handling (File Class, Reading and Writing Files)
| | |-- Streams (Byte Streams, Character Streams, Buffered Streams)
| |
| |-- Networking
| | |-- Sockets (TCP and UDP, Socket and ServerSocket Classes)
| | |-- URL and HTTP (URL Class, HttpURLConnection)
| |
| |-- JDBC
| | |-- Database Connectivity (JDBC Drivers, Connection, Statement, and ResultSet)
| | |-- PreparedStatement and CallableStatement
|
|-- Java Frameworks
| |-- Spring Framework
| | |-- Spring Core (Dependency Injection, Inversion of Control)
| | |-- Spring MVC (Model-View-Controller Architecture)
| | |-- Spring Boot (Creating Spring Boot Applications, Starters and Auto-Configuration, Actuator)
| |
| |-- Hibernate
| | |-- ORM Basics (Introduction to ORM, Configuration and Mapping)
| | |-- Advanced Hibernate (Caching, Transactions and Concurrency, Criteria API)
|
|-- Web Development with Java
| |-- Java EE (Jakarta EE)
| | |-- Servlets (Lifecycle, Handling HTTP Requests and Responses, Session Management)
| | |-- JavaServer Pages (JSP) (Syntax, Directives, JSTL and Custom Tags, Expression Language)
| |
| |-- RESTful Web Services
| | |-- JAX-RS (Creating RESTful Services, Annotations and HTTP Methods, Consuming RESTful Services)
|
|-- Build Tools and Dependency Management
| |-- Maven
| | |-- Project Object Model (POM), Dependencies, Repositories, Build Lifecycle and Plugins
| |
| |-- Gradle
| | |-- Build Scripts, Dependency Management, Task Automation
|
|-- Testing in Java
| |-- Unit Testing
| | |-- JUnit (Annotations, Assertions, Test Suites and Runners)
| |
| |-- Mockito (Creating Mocks and Spies and Verification)
| |
| |-- Integration Testing
| | |-- Spring Test (Testing Spring Components and WebTestClient)
|
|-- Deployment and DevOps
| |-- Containers and Microservices
| | |-- Docker (Dockerfile, Image Creation, Container Management)
| | |-- Kubernetes (Pods, Services, Deployments, Managing Java Applications on Kubernetes)
Free books and courses to learn Java๐๐
https://bit.ly/3hbu3Dg
https://bit.ly/3BSHP5S
https://t.me/Java_Programming_Notes
Join @free4unow_backup for more free courses
ENJOY LEARNING๐๐
โค20
"Java Project Workshop โ๏ธ"
Master Java programming through hands-on projects! From basic calculators to advanced applications like ATM systems and face detection, build real-world solutions while strengthening your Java skills. Perfect for beginners and intermediate developers looking to expand their portfolio.
โค12
Real word Java coding standards and best practices.pdf
291.3 KB
Real word Java coding standards and best practices ๐
React โค๏ธ For More
React โค๏ธ For More
โค8
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โค8
Java, Spring Boot, Microservices, and Angular.pdf
195.9 KB
Java, Spring Boot, Microservices, and Angular Interview Preparation Guide ๐ฅ
React โค๏ธ for More
React โค๏ธ for More
โค18
List of topics you need to cover if you're preparing for Java Interviews based on current Job market:
1. Core Java Fundamentals (Refer to already posted topics)
2. Advanced Java
- Design Patterns
- Multithreading
- Java Memory Model
- Performance Optimization
- Reflection & Dynamic Proxies
3. Spring Framework
- Spring core concepts
- Spring boot
- Spring Data JPA
- Spring Security
- Spring cloud
- Spring webflux
4. Hibernate
5. Testing (JUnit, Mockito, Integration, Functional, Performance Testing)
6. Build Tools (Maven / Gradle)
7. Logging
8. RDBMS, NoSQL DBs
9. WebSecurity Concepts
10. REST API concepts
11. CI/CD (Jenkins, GitHub Actions)
12. Containerization (Docker, Kubernetes)
13. Version Control (GitHub)
14. Monitoring (Grafana, ELK Stack etc)
15. Cloud (AWS, Azure, GCP (Very rare) )
16. Spring boot microservices
16. Messaging systems
17. Caching Strategies
18. System Design
19. Data Structures
20. Algorithms
21. Agile Methodologies
22. Behavioral questions
1. Core Java Fundamentals (Refer to already posted topics)
2. Advanced Java
- Design Patterns
- Multithreading
- Java Memory Model
- Performance Optimization
- Reflection & Dynamic Proxies
3. Spring Framework
- Spring core concepts
- Spring boot
- Spring Data JPA
- Spring Security
- Spring cloud
- Spring webflux
4. Hibernate
5. Testing (JUnit, Mockito, Integration, Functional, Performance Testing)
6. Build Tools (Maven / Gradle)
7. Logging
8. RDBMS, NoSQL DBs
9. WebSecurity Concepts
10. REST API concepts
11. CI/CD (Jenkins, GitHub Actions)
12. Containerization (Docker, Kubernetes)
13. Version Control (GitHub)
14. Monitoring (Grafana, ELK Stack etc)
15. Cloud (AWS, Azure, GCP (Very rare) )
16. Spring boot microservices
16. Messaging systems
17. Caching Strategies
18. System Design
19. Data Structures
20. Algorithms
21. Agile Methodologies
22. Behavioral questions
โค16
โ
Don't Confuse Yourself While Learning Java!
*๐๐ฎ๐๐ถ๐ฐ๐ ๐ผ๐ณ ๐๐ฎ๐๐ฎ:*
โข Java Syntax & Structure
โข Data Types & Variables
โข Operators
โข Control Flow:
- if-else, switch
- for, while, do-while loops
- break & continue
- try-catch-finally
โข Methods
โข Packages & Imports
*๐ข๐ฏ๐ท๐ฒ๐ฐ๐-๐ข๐ฟ๐ถ๐ฒ๐ป๐๐ฒ๐ฑ ๐ฃ๐ฟ๐ผ๐ด๐ฟ๐ฎ๐บ๐บ๐ถ๐ป๐ด ๐ถ๐ป ๐๐ฎ๐๐ฎ:*
โข Classes & Objects
โข Inheritance
โข Polymorphism
โข Encapsulation
โข Abstraction
โข Constructors & Overloading
*๐๐ฎ๐๐ฎ ๐๐ผ๐น๐น๐ฒ๐ฐ๐๐ถ๐ผ๐ป๐ ๐๐ฟ๐ฎ๐บ๐ฒ๐๐ผ๐ฟ๐ธ:*
โข List, Set, Map, Queue
โข ArrayList, HashSet, HashMap, LinkedList
โข Iterators & Loops
โข Sorting & Filtering
*๐๐ ๐ฐ๐ฒ๐ฝ๐๐ถ๐ผ๐ป ๐๐ฎ๐ป๐ฑ๐น๐ถ๐ป๐ด:*
โข try-catch
โข throw, throws
โข Custom Exceptions
โข Exception Hierarchy
*๐๐ถ๐น๐ฒ ๐๐ฎ๐ป๐ฑ๐น๐ถ๐ป๐ด ๐ถ๐ป ๐๐ฎ๐๐ฎ:*
โข Reading/Writing Files
โข FileReader & BufferedReader
โข FileWriter & BufferedWriter
โข Working with JSON & CSV
*๐๐ฎ๐๐ฎ ๐๐ถ๐ฏ๐ฟ๐ฎ๐ฟ๐ถ๐ฒ๐ & ๐ง๐ผ๐ผ๐น๐:*
โข Apache Commons
โข Jackson / Gson for JSON
โข JUnit for Testing
โข Maven / Gradle
*๐๐ฎ๐๐ฎ ๐ฆ๐๐ฟ๐๐ฐ๐๐๐ฟ๐ฒ๐ ๐ถ๐ป ๐๐ฎ๐๐ฎ:*
โข Arrays
โข Strings
โข Lists
โข Stacks & Queues
โข HashMaps
โข Trees & Graphs (Basic)
*๐ ๐๐น๐๐ถ๐๐ต๐ฟ๐ฒ๐ฎ๐ฑ๐ถ๐ป๐ด ๐ฎ๐ป๐ฑ ๐๐ผ๐ป๐ฐ๐๐ฟ๐ฟ๐ฒ๐ป๐ฐ๐:*
โข Threads & Runnable
โข Synchronization
โข ExecutorService
โข Concurrency Utilities
*๐๐ฑ๐๐ฎ๐ป๐ฐ๐ฒ๐ฑ ๐ง๐ผ๐ฝ๐ถ๐ฐ๐:*
โข Lambda Expressions
โข Streams API
โข Functional Interfaces
โข Java 8+ Features
โข Generics
โข Reflection API
๐ฌ Tap โค๏ธ for more!
*๐๐ฎ๐๐ถ๐ฐ๐ ๐ผ๐ณ ๐๐ฎ๐๐ฎ:*
โข Java Syntax & Structure
โข Data Types & Variables
โข Operators
โข Control Flow:
- if-else, switch
- for, while, do-while loops
- break & continue
- try-catch-finally
โข Methods
โข Packages & Imports
*๐ข๐ฏ๐ท๐ฒ๐ฐ๐-๐ข๐ฟ๐ถ๐ฒ๐ป๐๐ฒ๐ฑ ๐ฃ๐ฟ๐ผ๐ด๐ฟ๐ฎ๐บ๐บ๐ถ๐ป๐ด ๐ถ๐ป ๐๐ฎ๐๐ฎ:*
โข Classes & Objects
โข Inheritance
โข Polymorphism
โข Encapsulation
โข Abstraction
โข Constructors & Overloading
*๐๐ฎ๐๐ฎ ๐๐ผ๐น๐น๐ฒ๐ฐ๐๐ถ๐ผ๐ป๐ ๐๐ฟ๐ฎ๐บ๐ฒ๐๐ผ๐ฟ๐ธ:*
โข List, Set, Map, Queue
โข ArrayList, HashSet, HashMap, LinkedList
โข Iterators & Loops
โข Sorting & Filtering
*๐๐ ๐ฐ๐ฒ๐ฝ๐๐ถ๐ผ๐ป ๐๐ฎ๐ป๐ฑ๐น๐ถ๐ป๐ด:*
โข try-catch
โข throw, throws
โข Custom Exceptions
โข Exception Hierarchy
*๐๐ถ๐น๐ฒ ๐๐ฎ๐ป๐ฑ๐น๐ถ๐ป๐ด ๐ถ๐ป ๐๐ฎ๐๐ฎ:*
โข Reading/Writing Files
โข FileReader & BufferedReader
โข FileWriter & BufferedWriter
โข Working with JSON & CSV
*๐๐ฎ๐๐ฎ ๐๐ถ๐ฏ๐ฟ๐ฎ๐ฟ๐ถ๐ฒ๐ & ๐ง๐ผ๐ผ๐น๐:*
โข Apache Commons
โข Jackson / Gson for JSON
โข JUnit for Testing
โข Maven / Gradle
*๐๐ฎ๐๐ฎ ๐ฆ๐๐ฟ๐๐ฐ๐๐๐ฟ๐ฒ๐ ๐ถ๐ป ๐๐ฎ๐๐ฎ:*
โข Arrays
โข Strings
โข Lists
โข Stacks & Queues
โข HashMaps
โข Trees & Graphs (Basic)
*๐ ๐๐น๐๐ถ๐๐ต๐ฟ๐ฒ๐ฎ๐ฑ๐ถ๐ป๐ด ๐ฎ๐ป๐ฑ ๐๐ผ๐ป๐ฐ๐๐ฟ๐ฟ๐ฒ๐ป๐ฐ๐:*
โข Threads & Runnable
โข Synchronization
โข ExecutorService
โข Concurrency Utilities
*๐๐ฑ๐๐ฎ๐ป๐ฐ๐ฒ๐ฑ ๐ง๐ผ๐ฝ๐ถ๐ฐ๐:*
โข Lambda Expressions
โข Streams API
โข Functional Interfaces
โข Java 8+ Features
โข Generics
โข Reflection API
๐ฌ Tap โค๏ธ for more!
โค29
Java_OOP-Cheat_Sheet.pdf
255 KB
Java OOP Concepts Cheat Sheet โ๐
Master Javaโs Object-Oriented pillars:
๐น Class & Object
๐น Inheritance
๐น Polymorphism
๐น Abstraction
๐น Encapsulation
React โค๏ธ if you love clean Java code!
Master Javaโs Object-Oriented pillars:
๐น Class & Object
๐น Inheritance
๐น Polymorphism
๐น Abstraction
๐น Encapsulation
React โค๏ธ if you love clean Java code!
โค13
Java Developer Interview โค
It'll gonna be super helpful for YOU
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ญ: ๐ฃ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐ ๐ณ๐น๐ผ๐ ๐ฎ๐ป๐ฑ ๐ฎ๐ฟ๐ฐ๐ต๐ถ๐๐ฒ๐ฐ๐๐๐ฟ๐ฒ
- Please tell me about your project and its architecture, Challenges faced?
- What was your role in the project? Tech Stack of project? why this stack?
- Problem you solved during the project? How collaboration within the team?
- What lessons did you learn from working on this project?
- If you could go back, what would you do differently in this project?
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฎ: ๐๐ผ๐ฟ๐ฒ ๐๐ฎ๐๐ฎ
- String Concepts/Hashcode- Equal Methods
- Immutability
- OOPS concepts
- Serialization
- Collection Framework
- Exception Handling
- Multithreading
- Java Memory Model
- Garbage collection
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฏ: ๐๐ฎ๐๐ฎ-๐ด/๐๐ฎ๐๐ฎ-๐ญ๐ญ/๐๐ฎ๐๐ฎ๐ญ๐ณ
- Java 8 features
- Default/Static methods
- Lambda expression
- Functional interfaces
- Optional API
- Stream API
- Pattern matching
- Text block
- Modules
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฐ: ๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด ๐๐ฟ๐ฎ๐บ๐ฒ๐๐ผ๐ฟ๐ธ, ๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด-๐๐ผ๐ผ๐, ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ฒ๐ฟ๐๐ถ๐ฐ๐ฒ, ๐ฎ๐ป๐ฑ ๐ฅ๐ฒ๐๐ ๐๐ฃ๐
- Dependency Injection/IOC, Spring MVC
- Configuration, Annotations, CRUD
- Bean, Scopes, Profiles, Bean lifecycle
- App context/Bean context
- AOP, Exception Handler, Control Advice
- Security (JWT, Oauth)
- Actuators
- WebFlux and Mono Framework
- HTTP methods
- JPA
- Microservice concepts
- Spring Cloud
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฑ: ๐๐ถ๐ฏ๐ฒ๐ฟ๐ป๐ฎ๐๐ฒ/๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด-๐ฑ๐ฎ๐๐ฎ ๐๐ฝ๐ฎ/๐๐ฎ๐๐ฎ๐ฏ๐ฎ๐๐ฒ (๐ฆ๐ค๐ ๐ผ๐ฟ ๐ก๐ผ๐ฆ๐ค๐)
- JPA Repositories
- Relationship with Entities
- SQL queries on Employee department
- Queries, Highest Nth salary queries
- Relational and No-Relational DB concepts
- CRUD operations in DB
- Joins, indexing, procs, function
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฒ: ๐๐ผ๐ฑ๐ถ๐ป๐ด
- DSA Related Questions
- Sorting and searching using Java API.
- Stream API coding Questions
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ณ: ๐๐ฒ๐๐ผ๐ฝ๐ ๐พ๐๐ฒ๐๐๐ถ๐ผ๐ป๐ ๐ผ๐ป ๐ฑ๐ฒ๐ฝ๐น๐ผ๐๐บ๐ฒ๐ป๐ ๐ง๐ผ๐ผ๐น๐
- These types of topics are mostly asked by managers or leads who are heavily working on it, That's why they may grill you on DevOps/deployment-related tools, You should have an understanding of common tools like Jenkins, Kubernetes, Kafka, Cloud, and all.
๐ง๐ผ๐ฝ๐ถ๐ฐ๐ ๐ด: ๐๐ฒ๐๐ ๐ฝ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฒ
- The interviewer always wanted to ask about some design patterns, it may be Normal design patterns like singleton, factory, or observer patterns to know that you can use these in coding.
Make sure to scroll through the above messages ๐ definitely you will get the more interesting things ๐ค
All the best ๐๐
It'll gonna be super helpful for YOU
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ญ: ๐ฃ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐ ๐ณ๐น๐ผ๐ ๐ฎ๐ป๐ฑ ๐ฎ๐ฟ๐ฐ๐ต๐ถ๐๐ฒ๐ฐ๐๐๐ฟ๐ฒ
- Please tell me about your project and its architecture, Challenges faced?
- What was your role in the project? Tech Stack of project? why this stack?
- Problem you solved during the project? How collaboration within the team?
- What lessons did you learn from working on this project?
- If you could go back, what would you do differently in this project?
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฎ: ๐๐ผ๐ฟ๐ฒ ๐๐ฎ๐๐ฎ
- String Concepts/Hashcode- Equal Methods
- Immutability
- OOPS concepts
- Serialization
- Collection Framework
- Exception Handling
- Multithreading
- Java Memory Model
- Garbage collection
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฏ: ๐๐ฎ๐๐ฎ-๐ด/๐๐ฎ๐๐ฎ-๐ญ๐ญ/๐๐ฎ๐๐ฎ๐ญ๐ณ
- Java 8 features
- Default/Static methods
- Lambda expression
- Functional interfaces
- Optional API
- Stream API
- Pattern matching
- Text block
- Modules
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฐ: ๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด ๐๐ฟ๐ฎ๐บ๐ฒ๐๐ผ๐ฟ๐ธ, ๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด-๐๐ผ๐ผ๐, ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ฒ๐ฟ๐๐ถ๐ฐ๐ฒ, ๐ฎ๐ป๐ฑ ๐ฅ๐ฒ๐๐ ๐๐ฃ๐
- Dependency Injection/IOC, Spring MVC
- Configuration, Annotations, CRUD
- Bean, Scopes, Profiles, Bean lifecycle
- App context/Bean context
- AOP, Exception Handler, Control Advice
- Security (JWT, Oauth)
- Actuators
- WebFlux and Mono Framework
- HTTP methods
- JPA
- Microservice concepts
- Spring Cloud
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฑ: ๐๐ถ๐ฏ๐ฒ๐ฟ๐ป๐ฎ๐๐ฒ/๐ฆ๐ฝ๐ฟ๐ถ๐ป๐ด-๐ฑ๐ฎ๐๐ฎ ๐๐ฝ๐ฎ/๐๐ฎ๐๐ฎ๐ฏ๐ฎ๐๐ฒ (๐ฆ๐ค๐ ๐ผ๐ฟ ๐ก๐ผ๐ฆ๐ค๐)
- JPA Repositories
- Relationship with Entities
- SQL queries on Employee department
- Queries, Highest Nth salary queries
- Relational and No-Relational DB concepts
- CRUD operations in DB
- Joins, indexing, procs, function
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ฒ: ๐๐ผ๐ฑ๐ถ๐ป๐ด
- DSA Related Questions
- Sorting and searching using Java API.
- Stream API coding Questions
๐ง๐ผ๐ฝ๐ถ๐ฐ ๐ณ: ๐๐ฒ๐๐ผ๐ฝ๐ ๐พ๐๐ฒ๐๐๐ถ๐ผ๐ป๐ ๐ผ๐ป ๐ฑ๐ฒ๐ฝ๐น๐ผ๐๐บ๐ฒ๐ป๐ ๐ง๐ผ๐ผ๐น๐
- These types of topics are mostly asked by managers or leads who are heavily working on it, That's why they may grill you on DevOps/deployment-related tools, You should have an understanding of common tools like Jenkins, Kubernetes, Kafka, Cloud, and all.
๐ง๐ผ๐ฝ๐ถ๐ฐ๐ ๐ด: ๐๐ฒ๐๐ ๐ฝ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฒ
- The interviewer always wanted to ask about some design patterns, it may be Normal design patterns like singleton, factory, or observer patterns to know that you can use these in coding.
Make sure to scroll through the above messages ๐ definitely you will get the more interesting things ๐ค
All the best ๐๐
โค16
Join our WhatsApp channel for Java Projects
๐๐
https://whatsapp.com/channel/0029VamdH5mHAdNMHMSBwg1s/1058
๐๐
https://whatsapp.com/channel/0029VamdH5mHAdNMHMSBwg1s/1058
โค7๐1
๐ด ๐ฆ๐ธ๐ถ๐น๐น๐ ๐ง๐ผ ๐ ๐ฎ๐๐๐ฒ๐ฟ ๐๐ฒ๐ณ๐ผ๐ฟ๐ฒ ๐๐ป๐๐ฒ๐ฟ๐ถ๐ป๐ด ๐๐ป๐๐ผ ๐ฎ๐ฌ๐ฎ๐ฒ๐
- Python Programming
- Data Analytics
- ChatGPT
- Data Visualization With Power BI
- Generative AI
- Data Science
- Tableau
- Java & SQL
๐ฆ๐๐ฎ๐ฟ๐ ๐ก๐ผ๐๐:-
https://pdlink.in/4m3FwTX
Learn Online | Get Certified With Pro Courses๐
- Python Programming
- Data Analytics
- ChatGPT
- Data Visualization With Power BI
- Generative AI
- Data Science
- Tableau
- Java & SQL
๐ฆ๐๐ฎ๐ฟ๐ ๐ก๐ผ๐๐:-
https://pdlink.in/4m3FwTX
Learn Online | Get Certified With Pro Courses๐
โค5
Polymorphism in Java
๐ Polymorphism allows a single interface to be used for different types of actions.
๐ It is of two types:
Method Overloading (Compile-time Polymorphism)
Method Overriding (Runtime Polymorphism)
Method Overloading (Same method name, different parameters)
class MathOperations {
int add(int a, int b) {
return a + b;
}
double add(double a, double b) {
return a + b;
}
}
Method Overriding (Same method in parent and child class)
class Animal {
void makeSound() {
System.out.println("Animal makes a sound");
}
}
class Dog extends Animal {
void makeSound() {
System.out.println("Dog barks");
}
}
๐ More Java Resources: https://whatsapp.com/channel/0029VamdH5mHAdNMHMSBwg1s
๐ Polymorphism allows a single interface to be used for different types of actions.
๐ It is of two types:
Method Overloading (Compile-time Polymorphism)
Method Overriding (Runtime Polymorphism)
Method Overloading (Same method name, different parameters)
class MathOperations {
int add(int a, int b) {
return a + b;
}
double add(double a, double b) {
return a + b;
}
}
Method Overriding (Same method in parent and child class)
class Animal {
void makeSound() {
System.out.println("Animal makes a sound");
}
}
class Dog extends Animal {
void makeSound() {
System.out.println("Dog barks");
}
}
๐ More Java Resources: https://whatsapp.com/channel/0029VamdH5mHAdNMHMSBwg1s
โค7