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Java Essentials for Android Udemy course hits 5,000 subscribers in April, 2015. Subscribe for 75% off with this coupon. Cal Poly students and high school students and teachers can get free subscriptions by contacting Dr. Janzen

Papyrus 1.0 with PDF on Android released at Mobile World Congress 2014

Papyrus on Windows Phone released in late 2013 listed as a best app in USA Today; announced at Nokia World East: article 1, article 2

Promoted to Professor effective September 2013

Our Android Labs have over 700,000 pageviews since 9/1/10.

Read more news here.

Papyrus featured in Google Play starting April 26, 2013, adding over 300,000 downloads in just over one week

My Java Essentials for Android course was one of thirty included in the initial Techcrunch launch of CrunchU

Articles by Chronicle of Higher Ed and Inside Higher Ed on my work with Java Essentials for Android published on Additional Udemy blog posts: Java Courses Android Courses

Current Android apps in Google Play: Papyrus, 2012 Advent Devotions, Daily Glub Glub, Campus Maps Cal Poly - SLO, 2 Click Text.

Check out what I did during my winter and spring 2012 sabbatical.

Congratulations Andrew Hughes on receiving Honorable Mention in the Samsung Galaxy Note S Pen Challenge for his Papyrus note-taking app!

We ran a CS4HS workshop for high school computer science teachers at Cal Poly July 18-19, 2012.

Check out Gmail Tap featuring Reed Morse, former student and co-creator of Punchd.

Check out WebIDE is an intelligent tutoring system we developed in an NSF CCLI Type I award.

Congratulations Punchd on being acquired by Google!

Check out what has been happening with mobile app development at Cal Poly.

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Last Update: 09/14/2006

David S. Janzen
Computer Science
California Polytechnic State University
San Luis Obispo, Ca 93407
djanzen (at)