IO输入输出 2

package com.hanqi.test;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

public class IoDemo {

    public static void main(String[] args) {
        
        try {
            FileInputStream in = new FileInputStream("d:/text.txt");
            byte [] b= new byte[1024];
            int i =-1;
            FileOutputStream out = new FileOutputStream("d:/IoDemo.txt");
            while((i=in.read(b))>0)
            {
                out.write(b,0,i);
            }
            out.close();
            in.close();
            System.out.println("存入成功");
        
        
        } catch (Exception e) {
            // TODO 自动生成的 catch 块
            e.printStackTrace();
        }
        


        

    }

}