slotmachine.java

SlotMachine.java是一个游戏的小开发

import java.io.*;


public class SlotMachine 
{
	
	public static void main(String[ ] args)throws IOException
	{
		int money = 0;
		int bet = 0;
		int x;
		int y;
		int answer;
		int c=1;
		boolean valid;
		
		BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
		
        System.out.println("你有多少本金?");
        
        valid=false;
        
		while (! valid)
		{
			try 
			{
				money=(new Integer(in.readLine())).intValue();
			    valid=true;
			}catch(NumberFormatException e)
			{
				System.out.println("输入错误！请重新输入：");
			}
		}
		
				
		while(c==1)
		{
			System.out.println("你想赌多少?");
			
			valid=false;
			
			while (! valid)
			{
				try 
				{
					bet=(new Integer(in.readLine())).intValue();
				    if(bet>money)
					{
						System.out.println("你的本金不够!请重新输入：");
						continue;
					}
				    valid=true;
				}catch(NumberFormatException e)
				{
					System.out.println("输入错误！请重新输入：");
				}
			}
						
			x=(int) (Math.random()*5*money)+1;
			
		    System.out.println("猜一猜比"+x+"大还是小(1为大，0为小)？\n你的选择:");
		    
		    valid=false;
		    
		    while (! valid)
			{
				try 
				{
					answer=(new Integer(in.readLine())).intValue();
				    if(answer!=0 && answer!=1)
					{
						System.out.println("输入错误!请重新输入(1为比"+x+"大，0为比"+x+"小)：");
						continue;
					}
				    valid=true;
				    y=(int) (Math.random()*5*money)+1;
				    System.out.println("结果是:"+y);
				
				    if( (y>x && answer==1) || (y<x && answer==0))
				    {
					    System.out.println("恭喜你赢了!");
					    money=money+bet;
				    }
				    
				    if( (y>x && answer==0) || (y<x && answer==1) || x==y )
				    {
					    System.out.println("很遗憾你输了.");
					    money=money-bet;
				    }
				}catch(NumberFormatException e)
				{
					System.out.println("输入错误！请重新输入(1为比"+x+"大，0为比"+x+"小)：");
				}
			}
		    
			System.out.println("你现在的余额为:"+money);
		    
		    if(money!=0)
		    {
		        System.out.println("是否继续游戏(1为是，0为否)?\n你的选择:");
		        
		        valid=false;
		        
		        while(!valid)
		        {
		            try 
				    {
		        	    c=(new Integer(in.readLine())).intValue();
		        	    if(c!=0 && c!=1)
					    {
						    System.out.println("输入错误!请重新输入(1为继续游戏，0为退出游戏)：");
						    continue;
					    }
		        	    valid=true;
				    }catch(NumberFormatException e)
				    {
					    System.out.println("输入错误！请重新输入(1为继续游戏，0为退出游戏)：");
				    }
		        }
		    }
		    else
		    {
		    	System.out.println("欢迎下次再来！");
		    	break;
		    }
		
		}
		if(c==0)System.out.println("欢迎下次再来！");
		
	}
}