org.sc3d.apt.sss.v3
Class Calculator.Operation

java.lang.Object
  org.sc3d.apt.sss.v3.Calculator.Expression
      org.sc3d.apt.sss.v3.Calculator.Operation

Enclosing class:

Calculator

public static class Calculator.Operation
extends Calculator.Expression

An Expression whose outermost operator is an addition, subtraction, multiplication of division.

Field Summary

Calculator.Expression	e1 One of the operands.
Calculator.Expression	e2 One of the operands.
java.lang.String	operator "+", "-", "*" or "/".

Constructor Summary

Calculator.Operation(Calculator.Expression e1, Calculator.Expression e2, java.lang.String operator)
Constructs an Operation, given values for its fields.

Method Summary

java.math.BigInteger

evaluate() Evaluates the operands and performs the operation.

Methods inherited from class java.lang.Object

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

Field Detail

e1

public final Calculator.Expression e1

One of the operands.

e2

public final Calculator.Expression e2

One of the operands.

operator

public final java.lang.String operator

"+", "-", "*" or "/".

Constructor Detail

Calculator.Operation

public Calculator.Operation(Calculator.Expression e1,
                            Calculator.Expression e2,
                            java.lang.String operator)

Constructs an Operation, given values for its fields.

Method Detail

evaluate

public java.math.BigInteger evaluate()

Evaluates the operands and performs the operation.

Specified by:

evaluate in class Calculator.Expression