Inheritance Hierarchy for Wrappers

(in java.lang package)

class Number  defines

doubleValue()

floatValue()

intValue()

longValue()

These can be used on all children  of Number as well.

Primitive types (non-objects) may also be cast:

int x;

  :

  :

float y;

y = 5.0/(float)x;

x = (int)y;

This is more expensive:

x = (new Float(y)).intValue();