viewhelper.java

《J2EE企业级应用开发》一书的配套源代码

package com.j2eeapp.ch14.viewhelper;
public class ViewHelper
{	
	double amount=0.0f;
	int time=0;
	public boolean checkInput(String amount2,String time2)
	{
		try
		{
			this.amount=Double.parseDouble(amount2);
			this.time=Integer.parseInt(time2);
			if(time>12||time<0)return false;
			if(amount<0)return false;
			return true;
		}
		catch(Exception e)
		{
			return false;
		}
	}
	public ValueObject doHelper()
	{
		return new Business().doBusiness(amount, time);
	}
}