Sample Java code

• Echo (from slides) - prints out all command line arguments
• SumArray Java code that reads an integer k followed by k more integers, return the sum of the k integers.
• Factorial program (from slides). Computes factorial of number of command line.
• IO examples from class:
  • command line
  • extract double from the input string
  • Using the stream tokenizer
  • each line as a string (extract 2 characters at a time)
• IO demo File IO
• PinBallGame.java , Ball.java , QuitItem.java Pinball program (graphics) (javac Pinball.java)