mae.expr
Interface Expression

All Known Implementing Classes:

Binary, Constant

public interface Expression

Basic methods in a simple expression.

Only constants and four binary operations are implemented.
Parentheses may be used witout any limitation.

 Jan 2002   First version
 30.8.2002  redesigned
 23.12.2002 package
 4.7.2003   NetBeans
 

Method Summary

float	fValue() Returns float value of this Expression
java.lang.String	toPostfix() Converts this Expression to postfix (RPN)
java.lang.String	toString() String representation of this Expression
java.lang.Object	toTree() Converts this Expression to tree **implement this**.

Method Detail

fValue

public float fValue()

Returns float value of this Expression

toString

public java.lang.String toString()

String representation of this Expression

toPostfix

public java.lang.String toPostfix()

Converts this Expression to postfix (RPN)

toTree

public java.lang.Object toTree()

Converts this Expression to tree **implement this**.

Tree may be in text form or a JTree.