org.nfunk.jep.function
Class Add

java.lang.Object
  org.nfunk.jep.function.PostfixMathCommand
      org.nfunk.jep.function.Add

All Implemented Interfaces:

PostfixMathCommandI

Direct Known Subclasses:

MAdd

public class Add
extends PostfixMathCommand

Addition function. Supports any number of parameters although typically only 2 parameters are used.

Author:

nathan

Field Summary

Fields inherited from class org.nfunk.jep.function.PostfixMathCommand

curNumberOfParameters, numberOfParameters

Constructor Summary

Add()

Method Summary

Complex	add(Complex c1, Complex c2)
Complex	add(Complex c, Number d)
Double	add(Number d1, Number d2)
Object	add(Object param1, Object param2) Adds two numbers together.
void	run(Stack stack) Calculates the result of applying the "+" operator to the arguments from the stack and pushes it back on the stack.

Methods inherited from class org.nfunk.jep.function.PostfixMathCommand

checkNumberOfParameters, checkStack, getNumberOfParameters, setCurNumberOfParameters

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Add

public Add()

Method Detail

run

public void run(Stack stack)
         throws ParseException

Calculates the result of applying the "+" operator to the arguments from the stack and pushes it back on the stack.

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class PostfixMathCommand

Throws:

ParseException

add

public Object add(Object param1,
                  Object param2)
           throws ParseException

Adds two numbers together. The parameters can be of type Number, Complex, or String. If a certain combination of types is not supported, a ParseException is thrown.

Parameters:

param1 - The first parameter to be added.

param2 - The second parameter to be added.

Returns:

The sum of param1 and param2, or concatenation of the two if they are Strings.

Throws:

ParseException

add

public Double add(Number d1,
                  Number d2)

add

public Complex add(Complex c1,
                   Complex c2)

add

public Complex add(Complex c,
                   Number d)