bluebean.java

该源码为JSP的开发案例集锦

package ch9;
import java.util.*;
public class BlueBean
{
	int blueColor,guess=0,lower=0,higher=255;
	boolean success;
	String hintMsg;
	public BlueBean()
	{
		initAnswer();
	}
	//产生随机整数
public synchronized void initAnswer()
	{
		blueColor=(int)(Math.random()*256);
		lower=0;
		higher=255;
		hintMsg="0-255";
		success=false;
	}
	public int getBlueColor()
	{
		return blueColor;
	}
	public void setGuess(String myGuess)
	{
		int intGuess;
		try
		{
			intGuess=Integer.parseInt(myGuess);
		}
		catch(NumberFormatException e)
		{
			intGuess= -1;
		}
		if(intGuess==blueColor)
			success=true;
		else if(intGuess== -1)
			hintMsg="请输入一个整数！";
		else if(intGuess<blueColor)
		{
			lower= intGuess;
			hintMsg=" "+lower+" - "+higher+" ";
		}
		else if(intGuess>blueColor)
		{
			higher= intGuess;
			hintMsg=" "+lower+" - "+higher+" ";
		}
		guess= intGuess;
	}
	public int getGuess()
	{
		return guess;
	}
	public Boolean getSuccess()
	{
		return success;
	}
	public String getHintMsg()
	{
		return " "+hintMsg;
	}
}