Java,IO之FileOutputStream和FileWriter写入文件(疯狂java讲义)

import java.io.*;  
    public class FileOutputStreamTest   
    {  
        public static void main(String[] args) throws IOException  
        {  
            FileInputStream fis = null;  
            FileOutputStream fos = null;  
            try  
            {  
                //创建字节输入流  
                fis = new FileInputStream("FileOutputStreamTest.java");  
                //创建字节输出流  
                fos = new FileOutputStream("newFile.txt");  
                byte[] bbuf = new byte[32];  
                int hasRead = 0;  
                //循环从输入流中取出数据  
                while((hasRead = fis.read(bbuf)) > 0)  
                {  
                    //每读取一次，即写入文件输出流，读了多少，就写多少  
                    fos.write(bbuf,0,hasRead);  
                }  
            }  
            catch (IOException ioe)  
            {  
                ioe.printStackTrace();  
            }  
            finally  
            {  
                if(fis != null)  
                {  
                    fis.close();  
                }  
                if(fos != null)  
                {  
                    fos.close();  
                }  
            }  
        }  
    }