Think Java is an introduction to computer science and programming intended for people with little or no experience. The goal is to help students learn to design and implement object-oriented solutions to non-trivial problems.

This book is free to read online and available for purchase in print and electronic formats.

Are you using this book in a class? We'd like to know about it! Please consider filling out this short survey.

Free HTML Version: Read online at GitHub Pages

Free PDF: Download from GitHub (canonical). Stable mirror: greenteapress.com/thinkjava7/thinkjava2.pdf.

Purchase Options (affiliate links):

• Bookshop.org - Support independent bookstores
• Amazon - Kindle and paperback editions

Note: Most readers won't need to build from source. The free HTML version is available online.

• Quarto (required for make html; install separately, not via conda)
• Python 3.12 for conversion scripts — use the conda env below
• LaTeX distribution (texlive-latex-extra, texlive-fonts-recommended on Linux) for PDF

make create_environment   # or: mamba env create -f environment.yml
conda activate ThinkJava2

Update later with make update_environment. Remove with make delete_environment.

No JDK is required for the interactive HTML book: java-runner runs entirely in the browser.

# HTML version (Quarto) — primary interactive book path
make html

# PDF version (LaTeX) — canonical PDF for GitHub + GTP
make pdf

# Legacy HTML versions
make hevea    # static HTML
make trinket  # interactive version (Trinket.io; being replaced by java-runner)

Same pattern as ThinkDSP: GitHub is canonical; Green Tea Press keeps old URLs in sync.

make pdf                 # build thinkjava2.pdf
make distrib             # confirm the PDF is ready to commit
git add thinkjava2.pdf && git commit && git push

# Optional: mirror to greenteapress.com/thinkjava7/ (requires ~/.ssh/config Host gtp)
make publish-gtp-dry
make publish-gtp

publish-gtp rsyncs only the PDF (no --delete, no HeVeA HTML). HTML for readers is Quarto on GitHub Pages.

ThinkJava2/
├── quarto/              # Quarto book project
│   ├── _quarto.yml      # Book configuration
│   ├── split_book.py    # LaTeX to QMD converter
│   ├── convert.py       # LaTeX command converter
│   └── custom.css       # Custom styling
├── book/                # Generated Quarto output
├── code/                # Example Java programs
├── figs/                # Source figures (xfig, dia)
├── ch*.tex             # Chapter source files
├── app*.tex            # Appendix source files
├── thinkjava2.tex      # Main LaTeX file
└── Makefile            # Build automation

Copyright (c) 2020 Allen B. Downey and Chris Mayfield.

This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. See LICENSE for details.