slogo.instruction

Class Product

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.Product

public class Product
extends Instruction

Field Summary

Fields

Modifier and Type	Field and Description
private GrammarElement	expression1
private GrammarElement	expression2

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Product(GrammarElement e, GrammarElement f) Represents a product instruction that can be executed

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(Context c) Evaluate this instruction in a Context.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

expression1

private GrammarElement expression1

expression2

private GrammarElement expression2

Constructor Detail

Product

public Product(GrammarElement e,
               GrammarElement f)

Represents a product instruction that can be executed

Parameters:

e - the first element in the product

f - the second element in the product

Method Detail

evaluate

public java.lang.Object evaluate(Context c)

Evaluate this instruction in a Context.

Specified by:

evaluate in class Instruction

Parameters:

c - the Context for the evaluation

Returns:

the result of evaluating the instruction list the last time

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

product with the two expressions