#javarevision search results

Day 91 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #SpringJPA / #Hibernate - Focused on common Hibernate configurations and how they affect persistence behavior - Worked with entity-level annotations used in real-world JPA mappings - Understood table-level annotations…

Day 90 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #Hibernate - Diving deep into Hibernate ORM mapping - Understood the clear separation between Spring Data JPA, JPA (specification), and Hibernate (implementation) - Learned how Hibernate translates object state changes…

Day 89 of #100DaysOfCode (#JavaRevision) ☕ A little detour to #CoreJava today - Understood the concept of Lambda expressions and why they were introduced - Worked with functional interfaces and lambda syntax - Learned how Streams help process collections declaratively -…

Day 88 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Worked on API response transformation - Defined custom response structures using @​ResponseBodyAdvice<Object> - Applied global response handling with @​RestControllerAdvice - Ensured correct HTTP status codes, error…

Day 87 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Worked with exception handling in Spring Boot - Understood exception handling using annotations at controller and global levels - Learnt how to return appropriate HTTP status codes and meaningful error messages - Created…

Day 86 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Worked on input validation in Spring Boot - Understood common validation annotations like @​NotNull, @​NotBlank, @​NotEmpty, and lots of others - Applied validation at the DTO level to protect the service and persistence…

Day 85 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Understood the role of the Service layer in a Spring Boot application - How it acts as a mediator between the presentation and persistence layers - Learned how separation of concerns is maintained between DTOs and…

Day 84 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Worked with the persistence layer using Spring Data JPA - Understood how an ORM works behind the scenes - Defined and worked with an Entity class in detail (table mapping, primary key, annotations) - Used Lombok to…

Day 83 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Worked with DTOs and used them inside controller methods - Learned how the Jackson library auto-maps DTO objects to JSON - Practiced dynamic URL handling using @​PathVariable and @​RequestParam - Implemented POST,…

Day 81 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Understood the presentation layer in Spring MVC - Went deeper into Controllers and DTO (Data Transfer Object) patterns - Clarified the difference between @​Controller and @​RestController - Worked with different request…

Day 79 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot - Understood the difference between DTOs vs Entities, and why DTOs matter in APIs - Understood how a web server works inside Spring Boot (Tomcat, DispatcherServlet, Controller,Response flow) - Studied how DispatcherServlet…

Day 75 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #Java - Spring Boot web project flow: client → controller → service → repository → database - Worked with controller annotations: @Controller and @RestController - Request mappings: mapping HTTP requests to…

Day 75 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #Java - How a web server works internally in Spring Boot - Understanding each layer of the MVC architecture and how it maintains separation of concerns - Going deeper into Spring MVC request handling flow #Spring…

Day 73 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #Java - Learned the fundamentals of the Maven build automation tool - Understood how Maven works like a chef: - pom.xml → the recipe - Dependencies → the ingredients - Final JAR → the plated dish - Why…

Day 71 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #CoreSpring - Conditional bean loading using @ConditionalOnProperty and related annotations - Understood the difference between the Spring Framework and Spring Boot - Went through the internal working of Spring Boot -…

Day 69 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #CoreSpring - Different Spring bean scopes — singleton, prototype, request, session, etc. - Understood Dependency Injection in detail - Learned the different ways to implement DI (via constructor/setter/field) - How…

Day 67 of #100DaysOfCode (#JavaRevision) ☕ #SpringBoot / #CoreSpring - Understanding the concept of Beans in Spring - Working with the IoC container (ApplicationContext / BeanFactory) - Exploring different ways to define and use Bean classes - Learned the lifecycle of a Bean…

Day 65 of #100DaysOfCode (#JavaRevision) - My old 2020 lectures are too theoretical and taking too long, so… - Joined Anuj’s Cohort for Spring Boot - Reason: need to revise Spring quickly with live projects - Done today: basics of Spring, IoC, and Dependency Injection - (will…

Day 63 of #100DaysOfCode (#JavaRevision) ☕ #CoreJava - Learned how default & parameterized constructors work - Understood the flow of constructor chaining using this() and super() - Explored how instance initialization blocks (IIBs) behave during object creation 💻 #JavaEE -…

Day 61 of #100DaysOfCode (#JavaRevision) ☕ #CoreJava - Understood static memory allocation (class-level) - Implemented static data members - Learned how dynamic memory allocation works 💻 #JavaEE - Explored the concept of JDBC connection pooling - Studied the different…