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

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

New No-Code Track! 🚀start learning today!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

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

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

  • Treehouse Logo
  • Plans
    Chevron
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
  • Library
    Chevron
    • All Courses
    • Tracks
    • College Credit
  • Techdegree
    Chevron
    • Overview
    • 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
    • Career Toolbox
    • CodeForward
    • Free Treehouse Near Me
    • Jobs
    • Blog
    • Support
    • About
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks College Credit
  • Overview 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
  • Career Toolbox CodeForward Free Treehouse Near Me Jobs Blog Support About
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • AI
      • • Android
      • • 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
    • Showing results for:
    • Java
    • Java Arrays
    • Gotchas and Wins
    • Sorting
    • Close
  • Henry Spock
    Henry Spock
    20,615 Points

    Arrays.sort giving weird output.

    Posted on Jul 9, 2021 by Henry Spock
    Henry Spock
    20,615 Points
    • Java
    • Java Arrays
    • Gotchas and Wins
    • Sorting

    1 Answer

  • Dylan Cascio
    Dylan Cascio
    5,488 Points

    Why does `"Apple".compareTo("apple");` return -32 and not 1, 0 or -1?

    Posted on Feb 10, 2019 by Dylan Cascio
    Dylan Cascio
    5,488 Points
    • Java
    • Java Arrays
    • Gotchas and Wins
    • Sorting

    1 Answer

  • john DOe
    john DOe
    27,897 Points

    How do I compare by multiple things, such as length first and then the normal lexical string compare?

    Posted on Jul 22, 2018 by john DOe
    john DOe
    27,897 Points
    • Java
    • Java Arrays
    • Gotchas and Wins
    • Sorting

    1 Answer

  • Ani Azot
    Ani Azot
    1,754 Points

    How do you know when to add parentheses to the end of certain methods?

    Posted on Jun 6, 2018 by Ani Azot
    Ani Azot
    1,754 Points
    • Java
    • Java Arrays
    • Gotchas and Wins
    • Sorting

    2 Answers

  • Lukasz Walczak
    Lukasz Walczak
    6,620 Points

    Everything in Java is passed by value, is it not? :)

    Posted on Nov 3, 2017 by Lukasz Walczak
    Lukasz Walczak
    6,620 Points
    • Java
    • Java Arrays
    • Gotchas and Wins
    • Sorting

    1 Answer

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

    Treehouse

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

See Full Catalogue

Techdegree

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

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
  • ...see more

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
  • ...see more

Explore

  • Plans
  • Affiliates
  • Perks
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
Terms & Conditions | Privacy

© 2025 Treehouse Island, Inc.