tk.pratanumandal.expr4j.shuntingyard

Class ShuntingYard

java.lang.Object

tk.pratanumandal.expr4j.shuntingyard.ShuntingYard

Direct Known Subclasses:

ShuntingYardDualStack, ShuntingYardExpressionTree

public abstract class ShuntingYard
extends Object

The ShuntingYard abstract class provides a blueprint for ShuntingYard implementations.

It provides only one method evaluate() which must be overridden by any implementing class.
This evaluate() method should act as the single point of access for the implementation.

Since:

0.0.1

Author:

Pratanu Mandal

Constructor Summary

Constructors

Constructor and Description
ShuntingYard() No-Argument Constructor.

Method Summary

Modifier and Type	Method and Description
abstract double	evaluate(String expr) Method to evaluate an expression. This method should act as the single point of access for the implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

ShuntingYard

public ShuntingYard()

No-Argument Constructor.

Method Detail

evaluate

public abstract double evaluate(String expr)

Method to evaluate an expression.
This method should act as the single point of access for the implementation.

Parameters:

expr - Expression string

Returns:

Result of expression evaluation as a double