Calculator.java：

/**
 * @Title:Calculator.java
 * @Package:com.you.model
 * @Description:封装计算的数值类
 * @author:Youhaidong(游海东)
 * @date:2014-6-15 下午10:40:34
 * @version V1.0
 */
package com.you.model;

import java.io.Serializable;

/**
 * 类功能说明
 * 类修改者 修改日期
 * 修改说明
 * <p>Title:Calculator.java</p>
 * <p>Description:游海东个人开发</p>
 * <p>Copyright:Copyright(c)2013</p>
 * @author:游海东
 * @date:2014-6-15 下午10:40:34
 * @version V1.0
 */
public class Calculator implements Serializable 
{
	/**
	 * @Fields  serialVersionUID:序列化
	 */
	private static final long serialVersionUID = 1L;
	
	/**
	 * 操作数一
	 */
	private double operandOne;
	
	/**
	 * 操作数二
	 */
	private double operandTwo;
	
	/**
	 * 运算结果
	 */
	private double result = 0.0;
	
	/**
	 * 运算符
	 */
	private String operator;
	
	/**
	 * 加法
	 */
	public double addition()
	{
		result = operandOne + operandTwo;
		return result;
	}
	
	/**
	 * 减法
	 */
	public double subtraction()
	{
		result = operandOne - operandTwo;
		return result;
	}
	
	/**
	 * 乘法
	 */
	public double multiplication()
	{
		result = operandOne * operandTwo;
		return result;
	}
	
	/**
	 * 除法
	 */
	public double division()
	{
		result = operandOne / operandTwo;
		return result;
	}

	/**
	 * @return the operandOne
	 */
	public double getOperandOne() {
		return operandOne;
	}

	/**
	 * @param operandOne the operandOne to set
	 */
	public void setOperandOne(double operandOne) {
		this.operandOne = operandOne;
	}

	/**
	 * @return the operandTwo
	 */
	public double getOperandTwo() {
		return operandTwo;
	}

	/**
	 * @param operandTwo the operandTwo to set
	 */
	public void setOperandTwo(double operandTwo) {
		this.operandTwo = operandTwo;
	}

	/**
	 * @return the result
	 */
	public double getResult() {
		return result;
	}

	/**
	 * @param result the result to set
	 */
	public void setResult(double result) {
		this.result = result;
	}

	/**
	 * @return the operator
	 */
	public String getOperator() {
		return operator;
	}

	/**
	 * @param operator the operator to set
	 */
	public void setOperator(String operator) {
		this.operator = operator;
	}
	
}