slogo.instruction

Class Negation

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.ArithmeticInstruction

slogo.instruction.UnaryExpression

slogo.instruction.Negation

public class Negation
extends UnaryExpression

Represents unary minus, e.g., MINUS num OR -expression

Field Summary

Fields inherited from class slogo.instruction.UnaryExpression

myExpression

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Negation(ArithmeticInstruction e) Represents a negation

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString() Format -expression
double	value(Context c)

Methods inherited from class slogo.instruction.ArithmeticInstruction

evaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

Negation

public Negation(ArithmeticInstruction e)

Represents a negation

Parameters:

e - the expression to negate

Method Detail

value

public double value(Context c)

Overrides:

value in class UnaryExpression

toString

public java.lang.String toString()

Format -expression

Overrides:

toString in class UnaryExpression