CS 111 - Program Design 1

Exam Review URL

• https://www.cs.uic.edu/pub/CS111/LectureNotesS14/Notes0220.txt

Topics for First Exam

• Java identifies and variable names
• Java Types
  • int
  • float, double
  • char
  • boolean
  • String
• Assignment Statements: =
• Arithmetic operators: + - * / % ()
• String concatonation: +
• Relational operators: > >= < <= =
• while loops
• writing methods and method calls

• Picture/World objects
  • creating a world or picture
  • show()
• Turtle Objects
  • creating a turtle
  • forward()
  • turn()
  • setPenColor()
  • penUp()
  • penDown()
  • setPenWidth()
• Drawing Regular Polygons
  • each angle is 360/numberOfSides
• Drawing Star shape
  • each angle is 720/numberOfSides
• Saving and restoring the Color of a Turtle
  • Color colorSaved = t.getPenColor()
  • t.setPenColor ( secondColor )
  • draw shape with seconColor
  • t.setPenColor (colorSaved)