ITEC 120 2009spring ibarland nokie jmdymacek

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lab02b
riddles and donuts

You might want to refer to yesterday's lecture notes to do these problems.

• Write a class DumbRiddleTester which will print out something like:

  Here's a riddle: Q: What is at the center of gravity? A: The letter 'v'!

  Your main method should declare the variable:

  String riddledCenter; riddledCenter = "gravity";

  and if this variable is initialized to any other word of odd length, your program will change the riddle accordingly. (It doesn't matter what your program does, should some hooligan set the variable to have an even length.)
• Write a class DonutPriceTester which will print out something like:

  5 jelly-filled donuts cost $1.25.

  Your main method should declare:
  • a variable for the donut-type (jelly-filled, in the example),
  • a variable for the number of desired donuts, and
  • a variable for the price per dozen donuts — 3.0 for the example given.
    (Is the price-per-dozen fundamentally an integer amount, or a possibly-fractional-amount? What Java type should you use for this variable?)
  and if these variables are initialized to any other values, your program will change the message accordingly.
• Optional, if you finish the previous problems: Check out the following problem at javabat.

• Optional, if you finish the first two problems: modify the problems so that they interactively ask the user for the word to use for riddledCenter and donutType. (See yesterday's lecture notes.)

  For an added challenge, also ask for the number and price of donuts interactively, using Java's methods Double.parseDouble(String) and Integer.parseInt(String) to convert a String into an double or int.

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©2009, Ian Barland, Radford University Last modified 2009.Jan.27 (Tue)

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