I'm not sure what it wants me to do here. dx
complete the diskdrive class shown below. a diskdrive keeps track of how much disk space is used and how much is free. the maximum size of the drive is a parameter to the constructor. the occupied space on the drive can never exceed the maximum size of the drive and can never go below zero.
public class diskdrive
{
// declare instance variables
// postcondition: all instance variables are initialized
public diskdrive(double sizecapacity)
{
}
// postcondition: the disk space occupied is increased by the amount given by the
// parameter and cannot exceed the maximum
public void addfile(double size)
{
}
// postcondition: the disk space occupied is decreased by the amount given by the
// parameter and cannot be negative
public void deletefile(double size)
{
}
// postcondition: a quantity equal to the unoccupied disk space is provided and is
// not negative
public double getfreespace()
{
}
// other methods not shown
}