CS 55   Java Programming

Agenda

• Roll
• Chapter 3 - Introduction to Java Applets
• Review for Test 3

Example

Exercise3_8Applet.html Exercise 3.8 (Exercise 3.9 in 5th edition.) Source code: Exercise3_8Applet.java

Lab03

1. Write an applet that inputs from the user the radius of a circle as a floating-point number and displays the circle's diameter, circumference, and area. For ∏ you may use either the literal constant 3.14159 or the symbolic constant Math.PI. Use the  techniques shown in Fig. 3.13 (the AdditionApplet.java example). Use the following formulas:

   diameter = 2r
   circumference = 2∏r
   area = ∏r²

• classname: CircleApplet
• Turn in the CircleApplet.java file only.
2. Write an applet that  inputs from the user two integers and determines whether the first is a multiple of the second and displays the result. [Hint: Use the modulus (aka remainder) operator.]
• classname: MultipleApplet
• Turn in the MultipleApplet.java file only.

Test 1 Information

• When: next week
• Covers: chapters 1 - 3 and lectures
• Study Guide
• Need: Scantron form 882-ES and a No. 2 pencil