My development environment is jdk1.7, android 4.2, and eclipse 4.2.1 (Juno). It's the first android application I created. Precisely I created it referring to the sample that Android provides in the Android SDK and the notepad lesson that Android developers have provided. For more details about the notepad lesson, here's the link . ** 2013/4/1 - For those who are having bug on return from NoteEdit activity to NoteList activity. Tried to download again for update to new version. I have updated the latest version to link. Before debug latest version to android, old version must be uninstalled first. Here's how it looks like: Left side is the note list and the right side is the note editor. It's not really difficult to write this program if you have certain experienced to android apps program. Basically what I have used on this program mostly is fundamentally things like intent, SQLite database, options menu, list activity and of course life-cycle. If you