JAVA IO学习日志

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class FileCopy {
    public static void main(String[] args) {
        //文件拷贝 要求将E盘上的pic1.jpg文件拷贝到E盘的Copy.jpg
        FileCopy c=new FileCopy();
        c.Copy();
    }
    public void Copy() {
        //读取原文件
        int read = 0;
        String pathname = "e:\pic1.jpg";
        String destname="e:\Copy.jpg";
        FileInputStream fis = null;
        FileOutputStream fos=null;
        byte b[]=new byte[1024];
        try {
            fis = new FileInputStream(pathname);
            fos=new FileOutputStream(destname);
            while ((read = fis.read(b)) != -1) {
                fos.write(b,0,read);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                fis.close();
                fos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

文件的拷贝