CMIS 102A

Lab 3 

1.
Make an applet out of the Calculator.java program.
Copy the existing Calculator.java file from the class web site and
modify its name and "incantations" to change it from an application to
an applet. 

Use showInputDialog and showMessageDialog in the init method (these
two methods don't work well in the paint method, they can only be used
in the init method).  

Make an html file that contains the applet tag for the applet class
file.  Upload the html and class files to your web site. 


2.  Make an applet that calculates the area and circumference of a
circle.  Input the radius of the circle (in the init method).  Output
the resulting area and circumference in the init method.

In the paint method use drawString to display the results too (in
addition to displaying them in init, just for the heck of it).
Draw a filled circle of that size.

Declare any variables that both methods will use outside of both
methods but inside the public class.

Make an html file that contains the applet tag for the applet class
file.  Upload the html and class files to your web site. 


*******
Challenge exercise.

Done already?
Make another applet that inputs one number from the user and then
displays a filled circle of that size in the middle of the applet area.
The init method will do the input and the paint method will display the
circle.  

Then modify it so it displays five concentric circles of different
colors (and sizes).