com.klg.jclass.util.formulae
Class Add

java.lang.Object
  |
  +--com.klg.jclass.util.formulae.Operation
        |
        +--com.klg.jclass.util.formulae.Add

All Implemented Interfaces:

Cloneable, Expression

public class Add

extends Operation

This is a concrete implementation for the addition "+" operation. Addition is normally the sum of a pair of elements (unary identity), *???but it can also be between two lists???*.

Field Summary

Fields inherited from class com.klg.jclass.util.formulae.Operation

leftOperand, rightOperand

Constructor Summary

Add(com.klg.jclass.util.formulae.Expression left, com.klg.jclass.util.formulae.Expression right)
Create an operation to add two Expressions

Add(com.klg.jclass.util.formulae.Expression left, Number right)
Create an operation to add an Expression and a Number

Add(Number left, com.klg.jclass.util.formulae.Expression right)
Create an operation to add a Number and an Expression

Add(Number left, Number right)
Create an operation to add two Numbers

Method Summary

com.klg.jclass.util.formulae.Result

evaluate() Return the result of adding the operands

Methods inherited from class com.klg.jclass.util.formulae.Operation

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

Add

public Add(com.klg.jclass.util.formulae.Expression left,
           com.klg.jclass.util.formulae.Expression right)

Create an operation to add two Expressions

Add

public Add(com.klg.jclass.util.formulae.Expression left,
           Number right)

Create an operation to add an Expression and a Number

Add

public Add(Number left,
           com.klg.jclass.util.formulae.Expression right)

Create an operation to add a Number and an Expression

Add

public Add(Number left,
           Number right)

Create an operation to add two Numbers

Method Detail

evaluate

public com.klg.jclass.util.formulae.Result evaluate()

Return the result of adding the operands

Specified by:

evaluate in interface Expression

Specified by:

evaluate in class Operation

Returns:

The result of the first operand plus the second