利用FileOutputStream类和FileInputStream类拷贝一个文件

import java.io.*;

public class TestFileOutputStream{

    public static void main(String[] args){
        try{
            FileOutputStream out = new FileOutputStream("D:/Java/TestFileOutputStream/copy.txt");
            FileInputStream in = new FileInputStream("D:/Java/TestFileOutputStream/TestFileOutputStream.java");
            int b = 0;

            while((b = in.read()) != -1){
                out.write(b);
            }

            out.flush();
            out.close();
            in.close();
        } catch(FileNotFoundException e){
            e.printStackTrace();
        } catch(IOException e){
            e.printStackTrace();
        }
    }

}

原文地址：https://www.cnblogs.com/yxfyg/p/12394663.html