Package com.machconsulting.math

Class Variables

java.lang.Object

com.machconsulting.math.Variables

public class Variables
extends java.lang.Object

Variable Storage

Author:

Mike Hansen Stores variable names and their values. Variables are case insensitive. First letter of a variable name must be a letter from a-z (case insensitive).

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	alpha	Legal list of characters to start variables.

Constructor Summary

Constructors

Constructor	Description
Variables()
Variables(java.lang.String[] vars, double[] nums)
Variables(java.lang.String var, double num)

Method Summary

Modifier and Type	Method	Description
void	addVar(java.lang.String var, double num)	Add variable to list.
double	getVar(java.lang.String var)	Get value of variable
java.lang.String[]	getVarList()	Get list of variables
void	setVar(java.lang.String var, double num)	Change value of a variable
java.lang.String	toString()	Get list of variables and their values.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

alpha

public static final java.lang.String alpha

Legal list of characters to start variables. A-Z and a-z

See Also:

Constant Field Values

Constructor Detail

Variables

public Variables()

Variables

public Variables(java.lang.String var,
                 double num)
          throws MathException

Throws:

MathException

Variables

public Variables(java.lang.String[] vars,
                 double[] nums)
          throws MathException

Throws:

MathException

Method Detail

getVar

public double getVar(java.lang.String var)
              throws MathException

Get value of variable

Parameters:

var -

Returns:

value

Throws:

MathException

getVarList

public java.lang.String[] getVarList()

Get list of variables

Returns:

varList

toString

public java.lang.String toString()

Get list of variables and their values.

Overrides:

toString in class java.lang.Object

Returns:

output

addVar

public void addVar(java.lang.String var,
                   double num)
            throws MathException

Add variable to list.

Parameters:

var -

num -

Throws:

MathException

setVar

public void setVar(java.lang.String var,
                   double num)
            throws MathException

Change value of a variable

Parameters:

var -

num -

Throws:

MathException