SPARROW ZOO · LEARN & BUILD

Learn to code.
Bring a project to life.

Welcome to Zhige’s programming community. Start with a small project you can deploy, build your algorithm skills, and gain experience through real development workflows.

Explore the learning path Join the community

LEARNING PATH

Build your skills, one project at a time

Start where your experience takes you. Move from implementation to deployment, then explore algorithms and collaborative development.

STAGE 01 / FIRST PROJECT

Java Lottery Project

Build a complete lottery application while connecting Java fundamentals, frontend and backend implementation, and deployment.

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Who it’s forLearners starting Java or looking to take their first project online.

Learning goal

Complete a small project independently, from local development to a live deployment.

What you’ll explore

Java environment setup and language fundamentals
Lottery probabilities, statistics, and random numbers
Frontend and backend implementation from scratch
Nginx, automatic startup, and single-server high availability
DNS, deployment, operations, and Alibaba Cloud DevOps
Course questions and practical discussion

Try the lottery project

STAGE 02 / CORE SKILLS

Data Structures & Algorithms

Explore classic textbooks, JDK collection implementations, and common interview problems to understand how data structures work and how to reason about solutions.

Data structures and algorithms course material

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Who it’s forLearners with Java basics who want a deeper understanding of collections and algorithms.

Learning goal

Understand common data structures and algorithms, and make informed choices when using Java collections.

What you’ll explore

Core concepts drawn from classic textbooks
Data structures through JDK collection source code
Common problems informed by interview experience
Representative LeetCode problems and practice

View the syllabus

STAGE 03 / ENGINEERING PRACTICE

Practical Enterprise Development

Work through a real development process, from requirements and design reviews to integration and deployment, with architect guidance and peer discussion.

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Who it’s forLearners who can write basic application code and want to understand team development.

Learning goal

Experience the full process from requirements to deployment, and understand how design, implementation, and collaboration connect.

What you’ll explore

Enterprise workflows and requirements discussions
Architect guidance on design and implementation
Peer discussion, code reviews, and integration
Project deployment and launch

Project workflow

TRD analysis and requirements alignment · 3 sessions
API design and Swagger definitions · 2 sessions
Database design alignment · 5 sessions
Implementation · 10 sessions
Code review · 10 sessions
Code walkthroughs and alignment · 10 sessions
Integration testing · 5 sessions
Deployment · 2 sessions

View the project syllabus

Zhige

Java · Architecture · Open Source

YOUR MENTOR

Learn from hands-on experience

A developer since 2008 who enjoys programming, sharing knowledge, and open source. Learn through engineering practice, technical discussions, and concrete problems.

Tongcheng Travel: international flights and billions of global fare records
Meicai: recommendation platform architecture
Missfresh: search and recommendation for a major traffic entry point
Missfresh: an algorithm platform supporting supply chain purchasing, sales, replenishment, and distribution
An education platform in China: technical director experience
A new retail company: intelligent supply chain replenishment

Connect with Zhige