The I/O from sample program runs is as follows:

Script started on Fri Mar 18 10:16:19 2005
prompt >>
prompt >>
prompt >> java Sphere
Please enter the sphere radius
------------------------------
Radius R: 1.0
Sphere: Radius = 1.0
        Volume = 4.1887902047863905

prompt >> java Sphere
Please enter the sphere radius
------------------------------
Radius R: 0.0
Sphere: Radius = 0.0
        Volume = 0.0

prompt >> java Sphere
Please enter the sphere radius
------------------------------
Radius R: 2.0
Sphere: Radius = 2.0
        Volume = 33.510321638291124
prompt >> exit
Script done on Fri Mar 18 10:16:45 2005