slogo.instruction

Class Sum

java.lang.Object

slogo.GrammarElement

slogo.instruction.Instruction

slogo.instruction.ArithmeticInstruction

slogo.instruction.BinaryExpression

slogo.instruction.Sum

public class Sum
extends BinaryExpression

Represents a + b, the addition of two expressions

Field Summary

Fields inherited from class slogo.instruction.BinaryExpression

myLeft, myRight, mySymbol

Fields inherited from class slogo.GrammarElement

gelementsToValue

Constructor Summary

Constructors

Constructor and Description
Sum(ArithmeticBase lhs, ArithmeticBase rhs) Represents an addition

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString() Combine left/right subexpressions, return result using symbol as the combiner/juxtaposer for the subexpressions.
double	value(Context c)

Methods inherited from class slogo.instruction.BinaryExpression

leftValue, rightValue

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

Sum

public Sum(ArithmeticBase lhs,
           ArithmeticBase rhs)

Represents an addition

Parameters:

lhs - the left-hand side of the addition (before the +)

rhs - the right-hand side of the addition (after the +)

Method Detail

value

public double value(Context c)

Specified by:

value in class ArithmeticInstruction

toString

public java.lang.String toString()

Description copied from class: BinaryExpression

Combine left/right subexpressions, return result using symbol as the combiner/juxtaposer for the subexpressions.

Overrides:

toString in class BinaryExpression

Returns:

a string representing this expression