slogo.instruction

Class Forward

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.Forward

public class Forward
extends Instruction

Field Summary

Fields

Modifier and Type	Field and Description
private GrammarElement	steps

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Forward(GrammarElement s) Represents a forward command

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(Context c) Evaluate the expression and move turtle forward.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

steps

private GrammarElement steps

Constructor Detail

Forward

public Forward(GrammarElement s)

Represents a forward command

Parameters:

s -

Method Detail

evaluate

public java.lang.Object evaluate(Context c)

Evaluate the expression and move turtle forward.

Specified by:

evaluate in class Instruction

Parameters:

c - is the Context in which the evaluation occurs

Returns:

??

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

FORWARD followed by the expression