javac ArrowTurtle.java
javac BallTurtle.java
javac BoxTurtle.java
javac CrossTurtle.java
javac TGCanvas.java
javac TGFillOp.java
javac TGGraphicsOp.java
javac TGKeyHandler.java
javac TGLabelOp.java
javac TGLineOp.java
javac TGMouseHandler.java
javac TGPoint.java
javac TriangleTurtle.java
javac Turtle.java
javac TurtleGraphicsWindow.java
javac TurtlePixels.java
javac TurtleTurtle.java