import java.io.*;
public class ZJStream{
	public static void main(String args[]){
		FileInputStream in;
		FileOutputStream out1,out2;
		int count;
		byte b[]=new byte[1024];
		try
		{
		    String allStr;
			in = new FileInputStream("test1.txt");
			out1 = new FileOutputStream("test2.txt");
			out2 = new FileOutputStream("test3.txt");
		    while((count=in.read(b,0,1024))!=-1)
		      { for (int i=0;i<count;i++)
		      	{if (Character.isLetter((char)b[i]))
		      	   out1.write(b[i]);
		         else
		           out2.write(b[i]);}
		      }
		    System.out.println("區分并保存成功！");	
		}catch(IOException e){}
		}
	}