What is java-ramp-up?

dojovader/java-ramp-up — explained in plain English

Analysis updated 2026-05-18

★ 6Audience · developerComplexity · 2/5Setup · easy

Mindmap

mindmap
  root((java ramp up))
    What it does
      90 day checklist
      Daily topics
      Capstone projects
    Phase 1
      Java OOP basics
      Collections intro
      Library system project
    Phase 2
      Generics and exceptions
      Concurrency
      Streams and lambdas
    Phase 3
      Spring Boot
      REST APIs
      Docker and Kubernetes
    Audience
      Java beginners
      Self learners

mindmap root((java ramp up)) What it does 90 day checklist Daily topics Capstone projects Phase 1 Java OOP basics Collections intro Library system project Phase 2 Generics and exceptions Concurrency Streams and lambdas Phase 3 Spring Boot REST APIs Docker and Kubernetes Audience Java beginners Self learners

What do people build with it?

USE CASE 1

Follow a structured, day-by-day plan to learn Java from scratch through advanced topics.

USE CASE 2

Practice object-oriented programming and Java collections with small daily exercises.

USE CASE 3

Build toward a Spring Boot microservice, including REST APIs, security, and containerization.

What is it built with?

JavaSpring BootJPADockerKubernetesKafka

How does it compare?

	dojovader/java-ramp-up	abderazak-py/retro-homepage	acoyfellow/zero-cloudflare-hello
Stars	6	6	6
Language	—	HTML	HTML
Setup difficulty	easy	easy	easy
Complexity	2/5	2/5	2/5
Audience	developer	ops devops	developer

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min

Just requires JDK 21 and an IDE such as IntelliJ IDEA or VS Code to start Day 1.

So what is it?

Java Ramp-Up is a personal 90-day Java learning challenge, shared publicly as a structured curriculum with a daily checklist. It is designed to take someone from Java fundamentals all the way to production-ready Spring Boot microservices (Spring Boot is a popular Java framework for building web applications and services). The curriculum is divided into three phases. Phase 1 (Days 1-30) covers Java OOP Foundations: the basics of the Java language, object-oriented programming concepts like classes, inheritance, interfaces, and polymorphism, plus core data structures like ArrayList, HashMap, and HashSet. Phase 2 (Days 31-60) covers Advanced Java and Lambdas: the Java Collections Framework in depth, generics, exception handling, file I/O, concurrency, and the functional programming features added in modern Java (lambda expressions, streams, Optional, CompletableFuture, records, sealed classes). Phase 3 (Days 61-90) covers Spring Boot and Microservices: building REST APIs, data persistence with JPA (Java Persistence API, a standard way to store data in a database), Spring Security, testing, and containerization. A bonus section covers Kafka, Grafana, Docker, and Kubernetes. Each day is a concrete checkbox task with a specific topic and a small project or exercise. Phase capstone projects include a Library Management System (Phase 1), a Banking Application with concurrent transaction handling (Phase 2 milestone), and a production-deployed microservice (Phase 3 goal). The repo was created as a personal study tracker (Self Challenge Journey) and uses JDK 21 and either IntelliJ IDEA or VS Code as the development environment. The full README is longer than what was provided.

Copy-paste prompts

Prompt 1

Give me today's Day 1 exercise from this Java curriculum and check my Hello World program.

Prompt 2

Explain the difference between abstract classes and interfaces the way Day 17 through 19 of this plan cover it.

Prompt 3

Help me build the Library Management System project described as the Phase 1 capstone.

Prompt 4

Quiz me on Java streams and Optional based on the Week 8 topics in this checklist.

Frequently asked questions