The Turtle-Graphics tutorial is an learning and programming environment which allows a easy and demonstrative start into object-oriented programming with Java. There are two ideas behind it: We developed a Online-Editor which allows the user to write and directly compile programs online. This makes it especially for beginners much easier, because they do not need to install Java SDK and IDE on their local machine.
The tutorial uses the didactical designed class library of Turtle. Turtle provides a graphical window with adjusted coordinates and simple graphical commands. This allows beginners a easier start into programming with Java.
A Turtle object moves inside a graphical window (playground) and draws lines, allowing the programmer to follow its movements. To quickly see what Turtle can do, simply click on the examples below.
When programming with Turtle-Graphics the user uses the "original" Java program structures and syntax combined with the graphic-methods of the Turtle class.
The class library Turtle was designed in the computer lab of the University of Bern by Prof. Dr. Aegidius Plüss and programmed by Mrs. Regula Hofer. The newest Version of Turtle class library, and other useful class libraries and materials for programming and teaching Java, can be found at the website www.aplu.ch