৬ মাসের স্টাডিপ্ল্যান

৪৮ টি লাইভ ক্লাস

২ টি ইন্ডাস্ট্রি স্ট্যান্ডার্ড প্রজেক্ট

প্রোগ্রেস ট্র্যাকিং

প্রতিদিন ১ বেলা সাপোর্ট ক্লাস

কমিউনিটি সাপোর্ট

লাইফটাইম এক্সেস

ইন্টারভিউ হ্যান্ডবুক

সার্টিফিকেট

ল্যাপটপ/ডেস্কটপ (৮ জিবি র‍্যাম)

ভালো ইন্টারনেট কানেকশন

লেগে থাকার মানসিকতা

থাকছে ৫ টির বেশি রিয়েল লাইফ প্রজেক্ট, যেগুলো করে হয়ে যাবে মোস্ট ডিমানডিং প্রোডাক্ট বিল্ড করার অভিজ্ঞতা।

Run you first code!

জাভাস্ক্রিপ্টের উপর ফ্রি ভিডিওগুলো দেখে আপনার বেসিক ক্লিয়ার করে নিন।

বেসিক ঝালাই করুন এখান থেকে

Java

IntelliJ IDEA (IDE)

Eclipse IDE

Maven

Gradle

Spring Framework

Spring Boot

JPA (Hibernate)

MySQL

PostgreSQL

Swagger (OpenAPI)

Docker

GitHub

Prometheus

Spring Security

JUnit

টিম প্রোজেক্ট

সিভি মেকিং এবং পোর্ট ফোলিও বিল্ডিং

জব পাওয়া পর্যন্ত সাপোর্ট

Amir Hamza

Sohanur Rahman

Parvej Hossain

Shahid Afridi Zihad

Rejaul karim 

Ismile Sardar

Taib Islam Dipu

Md Sakhawat Hossain

ব্যাচে ভর্তি হোন

এই কোর্সটি কাদের জন্য?<ul><li>- যারা Java শেখার একদম শুরু থেকে শুরু করতে চান - যারা শুধু Java-ই নয়, Spring Boot দিয়ে industry-level API বা Web App বানাতে চান - যারা Full Stack হতে চান, কিন্তু Backend নিয়ে এখনো কোনো ধারণা নেই - যারা বড়ো কোম্পানির Enterprise Application, Microservices, বা Backend Engineer রোলে কাজ করতে আগ্রহী - আর যারা প্রজেক্ট করতে করতে শিখতে চান — হাতে কলমে রিয়েল লাইফ উদাহরণ ধরে ধরে</li></ul> কোর্স শেষে কীভাবে উপকৃত হবেন?<ul><li>- আপনি শুধু Java শেখা নয়—Spring Boot দিয়ে কাজ করতেও পারবেন</li><li>- Industry standard ২টি প্রজেক্ট আপনার Portfolio-তে থাকবে</li><li>- REST API, JWT Security, Database Modeling, Microservices Architecture—এসব নিয়ে আপনার স্পষ্ট ধারণা থাকবে</li><li>- Interview-এ confidently বলতে পারবেন: “Yes, I’ve built scalable backend systems using Java and Spring Boot.”</li></ul> এই কোর্সটিতে কী কী টপিক কভার করা হবে?<h4>Java Section (Week 1–8):</h4><ul><li>Java setup ও environment configuration</li><li>Basic syntax ও project structure</li><li>Variables, data types, type casting</li><li>Control flow: if/else, switch, loops</li><li>Methods, recursion, scope</li><li>Object-Oriented Programming:<ul><li>Classes &amp; Objects</li><li>Encapsulation</li><li>Inheritance</li><li>Polymorphism</li></ul></li><li>Collections (List, Set, Map)</li><li>Generics &amp; Streams API</li><li>Exception Handling</li><li>File I/O &amp; Serialization</li></ul><h4>Spring Boot Core (Week 9–16):</h4><ul><li>Spring Boot fundamentals &amp; setup</li><li>REST API development (GET, POST, PUT, DELETE)</li><li>Spring MVC controllers &amp; request handling</li><li>Spring Data JPA &amp; Hibernate</li><li>Entity modeling &amp; relationships</li><li>Form validation &amp; error handling</li><li>Global exception management</li><li>Logging with SLF4J &amp; Logback</li><li>Spring Security basics (Authentication &amp; Authorization)</li><li>Unit &amp; Integration testing</li><li>Configuration management &amp; environment profiles</li></ul>

Ask Me Anything About the “Java & SpringBoot” Course

প্রোজেক্ট ক্লাস এবং সাপোর্ট ক্লাস

Pial Kanti Samadder

Career Opportunities for Aspiring Java & SpringBoot Backend Developers

Java Intro Console App

Simple Interest Calculator

Grading System

BMI Calculator

Student Record Manager

Animal Sounds App

Console To-Do List

Text File Reader

Welcome API

Book Management API

Student Database API

Employee Directory API

Validated Form API

Secure Notes API

Book API Testing

Profile-Based Config API

Live Class 1: Java Overview &amp; Environment Setup Topics: History &amp; uses of Java | Java platform (JVM, JRE, JDK) | Installing Java &amp; setting JAVA_HOME | Choosing &amp; configuring an IDE | Writing &amp; running <a target="_blank" rel="noopener noreferrer nofollow" href="http://HelloWorld.java">HelloWorld.java</a> Live Class 2: Basic Syntax &amp; Project StructureTopics: Java file structure (packages, classes, methods) | main() method signature | Compiling vs. running (javac &amp; java) | Comments &amp; naming conventions | Quick Maven/Gradle demoProject: Java Intro Console App Create a console program that displays your name, why you're learning Java, and your career goal. Practice Java installation, IDE setup, and <a target="_blank" rel="noopener noreferrer nofollow" href="http://HelloWorld.java">HelloWorld.java</a>.

Java Setup & Basics

Live Class 1: Data Types &amp; Variables Topics: Primitive types (int, double, boolean, etc.) | Reference types (String, arrays) | Variable declaration, initialization &amp; constants | Type conversion &amp; casting Live Class 2: Console Input &amp; Output Topics: System.out.print vs. println | Scanner for user input | Formatting output (printf, format specifiers) | Basic input error handling previewProject: Simple Interest Calculator Take user input for principal, rate, and time using Scanner, then calculate and print the interest.

Variables, Types & I/O

Live Class 1: Branching Statements Topics: if / if-else / nested if | switch-case syntax &amp; fall-through | Best practices Live Class 2: Looping Constructs Topics: for loops (traditional &amp; enhanced) | while vs. do-while loops | break &amp; continue | Loop performance considerationsProject: Grading System Input a student's marks and output their grade using if-else or switch statements.

Control Flow

Live Class 1: Defining &amp; Calling Methods Topics: Method signature, return type, parameters | void vs. return methods | Calling methods &amp; argument passing | Variable scope &amp; lifetime Live Class 2: Advanced Method ConceptsTopics: Method overloading | Recursion fundamentals | Static vs. instance methods | Utility/helper class patternsProject: BMI Calculator Calculate a user's BMI and categorize it (Underweight, Normal, Overweight). Use separate methods for input, calculation, and result display.

Methods & Modular Code

Live Class 1: Classes &amp; Objects Topics: Class blueprint &amp; object instantiation | Fields &amp; methods | Constructors &amp; chaining | this keyword usage Live Class 2: Encapsulation &amp; Access Control Topics: Access modifiers (private, protected, public) | Getters/setters | Immutability basics | Class design best practicesProject: Student Record Manager Create a Student class with fields like name, ID, and grade. Instantiate and display multiple student objects in the console.

Object-Oriented Programming I

Live Class 1: Inheritance Fundamentals Topics: extends &amp; superclass/subclass | Method overriding | super keyword | Object class methods (toString, equals) Live Class 2: Polymorphism &amp; Interfaces Topics: Compile-time vs. runtime polymorphism | interface vs. abstract class | Default/static methods in interfaces | Designing extensible hierarchiesProject: Animal Sounds App Build a superclass Animal and subclasses like Dog, Cat, Cow. Each class should override a speak() method with unique sounds.

OOP II – Inheritance & Polymorphism

Core Java Foundation (Module 1-6)

Live Class 1: Java Collections Framework Topics: List (ArrayList, LinkedList) | Set (HashSet, TreeSet) | Map (HashMap, TreeMap) | Choosing the right collection Live Class 2: Generics &amp; Streams Introduction Topics: Generics syntax | Bounded type parameters | Iterator &amp; enhanced for-each | Streams API basics (stream(), filter, map, collect)Project: Console To-Do List Use an ArrayList to manage tasks. Add, view, and delete tasks via console commands. Loop through items with enhanced for and apply generics.

Collections & Generics

Live Class 1: Exception Handling Basics Topics: Checked vs. unchecked exceptions | try/catch/finally blocks | Custom exception classes | Error handling best practices Live Class 2: File I/O &amp; Serialization Topics: FileReader &amp; FileWriter | Buffered vs. unbuffered I/O | Object serialization (Serializable) | Java NIO Files utility methodsProject: Text File Reader Read content from a .txt file and handle exceptions (e.g., file not found). Display file content on the console safely.

Exception Handling & File I/O

Advanced Java Concepts (Module 7-8)

Live Class 1: Spring Boot Fundamentals Topics: Spring vs. Spring Boot | Auto-configuration mechanism | Starter dependencies overview | Reading <a target="_blank" rel="noopener noreferrer nofollow" href="http://application.properties">application.properties</a> Live Class 2: Project Bootstrapping Topics: Spring Initializr usage | Project structure overview | @SpringBootApplication annotation | Running with mvn spring-boot:runProject: Welcome API Create a Spring Boot project using Spring Initializr. Build a simple /welcome GET endpoint that returns a welcome message in JSON.

Spring Boot Introduction

Live Class 1: GET Endpoints with Spring MVC Topics: @RestController vs. @Controller | @GetMapping | @RequestParam &amp; @PathVariable | JSON serialization &amp; HTTP status codes Live Class 2: POST, PUT &amp; DELETE Endpoints Topics: @PostMapping, @PutMapping &amp; @DeleteMapping | @RequestBody usage | Bean Validation (@Valid, constraints) | Handling binding errors&nbsp;Project: Book Management API Develop a RESTful CRUD API to manage books (title, author, isbn) using @RestController, @PostMapping, etc. Store data in a list.

Building REST APIs I

Live Class 1: JPA Entities &amp; Repositories Topics: Defining @Entity classes | @Id &amp; @GeneratedValue | Spring Data JPA repositories | @Transactional basics Live Class 2: JPA Relationships Topics: @OneToOne, @OneToMany &amp; @ManyToMany | mappedBy &amp; join tables | Lazy vs. eager loading | Cascade operations&nbsp;Project: Student Database API Use Spring Data JPA and H2 to store student records in the database. Implement basic CRUD operations using repository methods.

Data Persistence with JPA I

Live Class 1: Query Methods &amp; JPQL Topics: Derived query methods | @Query &amp; JPQL | Native query overview | Parameter binding Live Class 2: Paging, Sorting &amp; Auditing Topics: Pageable &amp; Page | Sorting with Sort class | Auditing fields (@CreatedDate, @LastModifiedDate) | Enabling JPA AuditingProject: Employee Directory API Use JPQL to implement custom queries like search by name, paginate employee list, and sort by age using Pageable and Sort.

Data Persistence with JPA II

Live Class 1: Global Error Handling Topics: @ControllerAdvice &amp; @ExceptionHandler | Crafting error DTOs | HTTP status mapping | Validation error customization Live Class 2: Application Logging Topics: SLF4J vs. Logback basics | Log levels &amp; logback.xml | Contextual logging (MDC) | External log appenders&nbsp;Project: Validated Form API Create a REST API that validates user input and returns custom JSON error messages with appropriate HTTP status codes. Add basic logging.

Exception Handling & Logging

Spring Boot Essentials (Module 9-13)

<blockquote>Live Class 1: Authentication &amp; Authorization Topics: Authentication vs. Authorization | In-memory user store &amp; roles | BCryptPasswordEncoder | Security filter chain</blockquote><blockquote> Live Class 2: Securing Endpoints Topics: Method-level security (@Secured, @PreAuthorize) | URL-based rules | CSRF protection overview | Logout &amp; session management</blockquote>Project: Secure Notes API Create endpoints to store and view notes. Protect the API using in-memory authentication and role-based access.

Spring Security Basics

Live Class 1: Unit Testing Topics: JUnit 5 fundamentals | Mockito for mocks | Testing service layer | Test naming best practices Live Class 2: Integration Testing Topics: @SpringBootTest &amp; @WebMvcTest | TestRestTemplate &amp; MockMvc | In-memory H2 for tests | Transaction rollback in tests&nbsp;Project: Book API Testing Write unit tests using JUnit 5 and Mockito for the service layer. Add integration tests using @SpringBootTest or MockMvc.

Testing Spring Apps

Live Class 1: Externalized Configuration Topics: <a target="_blank" rel="noopener noreferrer nofollow" href="http://application.properties">application.properties</a> vs. application.yml | @Value &amp; @ConfigurationProperties | Profile-specific files | Env var overrides Live Class 2: Advanced Profile Management Topics: CLI/IDE profile activation | @Profile &amp; @Conditional | Secrets management strategies | Runtime config refresh (Spring Cloud)Project: Profile-Based Config API Set up <a target="_blank" rel="noopener noreferrer nofollow" href="http://application-dev.properties">application-dev.properties</a> and <a target="_blank" rel="noopener noreferrer nofollow" href="http://application-prod.properties">application-prod.properties</a>. Build an endpoint that shows environment-specific messages using Spring Profiles.

Configuration & Profiles

Security, Testing & Configuration (Module 14-16)

<ul><li>Live 1: Modeling Users, Products, Orders &amp; Carts </li><li>Live 2: DTOs, Mappers &amp; Database Relationships </li></ul>Project Class: Scaffold Entities &amp; Repos

Domain & Data Modeling

<ul><li>Live 1: Cart Management &amp; Order Placement Logic </li><li>Live 2: Payment Simulation &amp; Transaction Management </li></ul>Project Class: Implement Cart &amp; Order Controllers

API Endpoints & Business Logic

<ul><li>Live 1: JWT Authentication &amp; Filters </li><li>Live 2: Input Validation &amp; Error Handling </li></ul>Project Class: Secure All Endpoints with JWT

Security & Validation

<ul><li>Live 1: Integration Tests for Core Flows </li><li>Live 2: API Documentation with Swagger/OpenAPI </li></ul>Project Class: Write Test Suites &amp; Generate Docs

Testing & Documentation

ইন্ডাস্ট্রি স্ট্যান্ডার্ড প্রোজেক্টঃ ইকমার্স ব্যাকেন্ড (Module 17-20)

<ul><li>Live 1: Design Patterns: Service Discovery &amp; Gateway </li><li>Live 2: Spring Cloud Components Overview (Eureka, Gateway) </li></ul>Project Class: Stand Up Eureka Server &amp; API Gateway

Microservices Architecture

<ul><li>Live 1: Build CRUD Inventory Service </li><li>Live 2: Client-Side Load Balancing with Feign </li><li>Project Class: Implement Inventory Service &amp; Feign Client</li></ul>

Inventory Service

<ul><li>Live 1: Order Service with REST/Feign Calls to Inventory </li><li>Live 2: Config Server &amp; Centralized Configuration </li></ul>Project Class: Complete Order Service Integration

Order Service & Inter-Service Communication

<ul><li>Live 1: Containerization (Docker Compose) &amp; CI/CD with GitHub Actions </li><li>Live 2: Monitoring with Actuator, Micrometer &amp; Prometheus </li></ul>Project Class: Deploy Both Services Locally &amp; Visualize Metrics