AI Bootcamp Pre-Sale get 50% off Courses and Courses+ ahead of our AI Bootcamp program launch—sale ends soon!

Join the Treehouse affiliate program and earn 25% recurring commission!

✨ Earn college credits in Cybersecurity, JS, HTML, CSS and Python

  • Treehouse Logo
  • Plans
    Chevron
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
  • Library
    Chevron
    • All Courses
    • Tracks
    • College Credit
  • Techdegree
    Chevron
    • Techdegree Bootcamps
    • Front End Development
    • Full Stack JavaScript
    • Data Analysis
    • UX Design
    • Python
  • Community
    Chevron
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
    • 100 Days of Code
  • Resources
    Chevron
    • Explore
    • Career Toolbox
    • CodeForward
    • Free Treehouse Near Me
    • Jobs
    • Blog
    • Support
    • About
    • Learn
    • Beginner's Guide to Coding
    • Data Analysis with SQL & Python
    • Front-End Web Development
    • Python Programming Basics
    • Techdegree Bootcamp Overview
    • UX Design Fundamentals
    • AI Tools for Beginners
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks College Credit
  • Techdegree Bootcamps Front End Web Development Full Stack JavaScript Python Development Data Analysis UX Design
  • Code Adventures Discord Forum Success Stories Treehouse Links 100 Days of Code
  • Explore Career Toolbox CodeForward Free Treehouse Near Me Jobs Blog Support About
    Learn Beginner's Guide to Coding Data Analysis with SQL & Python Front-End Web Development Python Programming Basics Techdegree Bootcamp Overview UX Design Fundamentals AI Tools for Beginners
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn

"React Components (2018)" was retired on March 1, 2023. You are now viewing the recommended replacement.

Loading banner... Start your free trial at Treehouse
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • AI
      • • APIs
      • • Coding for Kids
      • • College Credit
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Game Development
      • • Go Language
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • No-Code
      • • PHP
      • • Professional Growth
      • • Python
      • • Quality Assurance
      • • React
      • • Ruby
      • • Security
      • • Swift
      • • Vibe Coding
  • Kate C
    Kate C
    13,589 Points

    Some error...

    Posted June 28, 2020 3:42am by Kate C
    Kate C
    13,589 Points
    • Java
    • The Solution

    1 Answer

  • Jamal Desir
    Jamal Desir
    1,184 Points

    bash: Greeter.java: command not found?

    Posted September 14, 2018 9:21pm by Jamal Desir
    Jamal Desir
    1,184 Points
    • Java
    • The Solution

    1 Answer

  • Divyansh Shukla
    PLUS
    Divyansh Shukla
    Courses Plus Student 32 Points

    what software to use for java programming

    Posted August 14, 2017 5:35am by Divyansh Shukla
    Divyansh Shukla
    Courses Plus Student 32 Points
    • Java
    • The Solution

    5 Answers

  • John Paige
    John Paige
    7,436 Points

    Works in Workspaces, but not in IntelliJ IDE

    Posted August 7, 2017 4:00am by John Paige
    John Paige
    7,436 Points
    • Java
    • The Solution

    2 Answers

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.

Techdegree

  • Front End Web Development
  • Full Stack JavaScript
  • Python Development
  • Data Analysis
  • UX Design
SEE ALL

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
SEE ALL

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
SEE ALL

About Us

  • About
  • Blog
  • Community
  • Stories
  • Contact
  • Gift Card

Explore

  • Plans
  • Affiliates
  • Perks
  • Shop
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses

Treehouse is an online coding education platform that teaches students to code through a browser-based coding environment with live instructor support, ACE-credited college courses, and financial scholarships. The platform offers 300+ courses spanning web development, Python, data analysis, UX design, and AI, along with bootcamp-style Techdegree programs that include human-graded projects, career coaching, and digital certificates. Students build job-ready portfolios and gain the skills to launch careers in tech. Treehouse is also available for free through participating public libraries nationwide.

Terms & Conditions · Privacy · © 2026 Treehouse Island, Inc.
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
  • Discord