infix2postfix
Class Operator

java.lang.Object
  infix2postfix.Operator

Direct Known Subclasses:

BinaryOperator, UnaryOperator

public abstract class Operator

extends java.lang.Object

This object represents any operator in the expression. An operator must have a symbol (e.g. '+') and priority number (e.g. 1).

Author:

Maulin H. Vasavada

Field Summary

protected int	priority Priority number associated with this operator
protected java.lang.String	symbol Symbol to represent this operator

Constructor Summary

Operator(java.lang.String symbol, int priority)
Constructor accepting symbol and priority

Method Summary

boolean	equals(java.lang.Object o) Equates two operators.
int	getPriority() Returns priority associated with this operator.
java.lang.String	getSymbol() Returns symbol associated with this operator.
int	hashCode() Defines hashcode for this operator.

Methods inherited from class java.lang.Object

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

Field Detail

symbol

protected java.lang.String symbol

Symbol to represent this operator

priority

protected int priority

Priority number associated with this operator

Constructor Detail

Operator

public Operator(java.lang.String symbol,
                int priority)

Constructor accepting symbol and priority

Method Detail

getSymbol

public java.lang.String getSymbol()

Returns symbol associated with this operator.

getPriority

public int getPriority()

Returns priority associated with this operator.

equals

public boolean equals(java.lang.Object o)

Equates two operators. Two operators are equal only if their symbols matches ignoring the case.

hashCode

public int hashCode()

Defines hashcode for this operator.