求助，急

[不学习就落后]

import java.io.*;
public class TotalBytes  
{			
			public static final double unknowk=5.2588;
			public static final double unknowKbs=1;
			public static void main(String []args)throws Exception{

			System.out.println("Please input the basic students number");
			double m=1263;
			double n, totalNumber, totalKbs, summerKbs ,chinaKbs, usaKbs,sumKbs;
			double sum=0;
			
			for(int i=0;i<10;i++)
			{
					n=System.in.read();	
					System.out.println("This is the "+i+"times the programming is running");
					System.out.println(m);
					totalNumber=m+n;
					totalKbs=totalNumber*70+totalNumber*unknowk*unknowKbs;
					summerKbs=totalNumber*0.5*120+totalNumber*0.5*unknowk*unknowKbs;
					chinaKbs=totalNumber*0.5*0.75*120+totalNumber*0.5*0.75*unknowk*unknowKbs;
					usaKbs=totalNumber*0.5*0.75*0.25+totalNumber*0.5*0.75*0.25*unknowk*unknowKbs;
					sumKbs=totalKbs+summerKbs+chinaKbs+usaKbs;
					System.out.println(i+"times sumKbs"+sumKbs);
					sum+=sumKbs;
					System.out.println(i+"times sum"+sum);
					System.out.println("over");
					m=totalNumber*0.5*0.75*0.25;
			}
}
}

程序要求，循环十次，每次都要读取键盘输入的n，但运行输入一次n循环四次，为什么

[向多条绿色裤衩努力]

你输入的回车太多？

[向多条绿色裤衩努力]

同时没见你有输入呢？