Computer Science 120
Introduction to Programming

Fall 2011, Siena College

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Agenda

• Java naming conventions
  • class names: capitalize, if made up from more than one word, capitalize each word. e.g., TouchyWindow, FramedRect, Color.
  • instance variable and method names: lower case, if made up from more than one word, capitalize all but the first word. e.g., onMousePress, laundry, littleRedCircle.
  • named constants: all caps, if made up from more than one word, separate words by underscore characters. e.g., BALL_DIAMETER, VELOCITY, START_X.
• Working with colors
  • custom colors
  • random colors
• Dragging graphical objects

Suggested Exercise [not due for a grade]

1. BDM Exercise 3.7.1, p. 78.
2. BDM Exercise 4.2.2, p. 98.

Examples

• ColorfulSpirograph
• MoreColorfulSpirograph
• CrazyColorfulSpirograph
• UglyDragABall
• DragABall
• Basketball