Arithmetic
Class PostfixEvaluator

java.lang.Object
  |
  +--Arithmetic.PostfixEvaluator

public class PostfixEvaluator

extends java.lang.Object

PostfixEvaluator evaluates the result of a postfix expression

Constructor Summary

PostfixEvaluator(StringReader r)
Constructor PostfixEvaluator initializes the evaluator

Method Summary

int	evaluate() evaluate evaluates the postfix expression to an integer

Methods inherited from class java.lang.Object

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

Constructor Detail

PostfixEvaluator

public PostfixEvaluator(StringReader r)

Constructor PostfixEvaluator initializes the evaluator

Parameters:

r - - the postfix expression to be evaluated

Method Detail

evaluate

public int evaluate()

evaluate evaluates the postfix expression to an integer

Returns:

the value of the expression supplied to the constructor method.