A technical learning platform for developers
Consolidate mainstream tech stacks, learning paths, and runnable examples into a single entry point.
From concept to practice: advance a technology in stages. First, clarify the direction; then follow the roadmap by reading tutorials, copying examples, and building projects.
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- a technical direction
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- Learning Paths
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- Code snippet
Technical Direction
Explore the available learning paths first.
Each direction includes positioning, target audience, and core knowledge to help you decide if it's worth investing in.
Learning Path
From basics to hands-on: master a technology step by step
The learning path connects scattered knowledge points into phased goals, with each phase leading to specific tutorials and code examples.
Get Started
Master grammar and programming logic to build mini-programs independently.
Advanced
Understand frameworks and engineering structures; capable of organizing medium-sized projects.
Hands-on
Complete the full project to deliver an engineering-ready solution.
Latest Tutorials
Master any technical concept, starting here.
Each tutorial focuses on a specific problem, providing actionable steps and common pitfalls to avoid.
Code Example
Understandable and easy to copy.
All examples include full code, line numbers, and one-click copy buttons, along with a key point note for easy integration and reference in your project.
1Map<String, Long> Count by Department = employees.stream()2 .collect(Collectors.group by(3 Employee::get department,4 Collectors.counting()5 ));67Count by Department.forEach((department, count) ->8 System.exit.println(department + " -> " + count));Project Case Studies
What can these technologies achieve?
Demonstrate technology selection and implementation key points with real-world projects to make learning goals more concrete.
Pick a direction and take one small step forward today.
Have suggestions for additional technical areas or content? Please let us know directly.