Java Scientific Calculator: jscicalc.pobject.Container Class Reference

This class is used for various PObjects like Ans and Mean that contain a specific double value. More...

Collaboration diagram for jscicalc.pobject.Container:

Collaboration graph

List of all members.

Public Member Functions
	Container ()
	Constructor: initialises the contained value to zero.
double	dvalue ()
	We need to can extract the double.
OObject	value ()
	We need to can extract the value.
boolean	error ()
	If we can’t store a sensible double, we set flag to say so and can read it here.
Protected Attributes
double	d
	Storage for the double.
OObject	c
	Storage for the OObject result.
boolean	error
	error flag.

Detailed Description

This class is used for various PObjects like Ans and Mean that contain a specific double value.

For example, when you press the Mean or Ans button on the calculator you get an expression that should be replaced with a double when the expression is evaluated. This class holds the code to handle this.

Author:: J. D. Lamb

Version:

Revision:: 1.5

Constructor & Destructor Documentation

jscicalc.pobject.Container.Container ( )

Constructor: initialises the contained value to zero.

References jscicalc.pobject.Container.c, jscicalc.pobject.Container.d, and jscicalc.pobject.Container.error().

Member Function Documentation

double jscicalc.pobject.Container.dvalue ( )

We need to can extract the double.

Returns:: stored value

References jscicalc.pobject.Container.d.

boolean jscicalc.pobject.Container.error ( )

If we can’t store a sensible double, we set flag to say so and can read it here.

Returns:: true if the value stored is not sensible.

References jscicalc.pobject.Container.error.

Referenced by jscicalc.pobject.Container.Container().

OObject jscicalc.pobject.Container.value ( )

We need to can extract the value.

Returns:: stored value

References jscicalc.pobject.Container.c.

Referenced by jscicalc.CalculatorApplet.statSumSquares().

Member Data Documentation

OObject jscicalc.pobject.Container.c [protected]

Storage for the OObject result.

Referenced by jscicalc.pobject.Ans.Ans(), jscicalc.pobject.Container.Container(), jscicalc.pobject.Pi.Pi(), and jscicalc.pobject.Container.value().

double jscicalc.pobject.Container.d [protected]

Storage for the double.

Referenced by jscicalc.pobject.Ans.Ans(), jscicalc.pobject.Container.Container(), jscicalc.pobject.Container.dvalue(), and jscicalc.pobject.Pi.Pi().

boolean jscicalc.pobject.Container.error [protected]

error flag.

Referenced by jscicalc.pobject.Container.error(), and jscicalc.CalculatorApplet.statSumSquares().

The documentation for this class was generated from the following file:

Container.java