复制文件的问题：使用FileInputStream和FileOutputStream实现文件复制

public class Test{

public static void main(String [] args)

{

Test t=new Test();

t.upload();

}

public void upload()

{

Scanner sc=new Scanner(System.in);

System.out.println("路径");

String str=sc.next();

File f=new File(str);

System.out.println("复制的位置：");

String di=sc.next();

FileInputStream fi=null;

FileOuputStream fo=null;

try{

fi=new FileInputStream (f);

fo=new FileOutputStream(di+File.separator+f.getName());//复制文件的名字

int num=0;

while((num=fi.read())!=-1)

{

fo.write(num);

}

System.out.println("成功");

}

catch(Exception e)

{

e.printStackTrace();

System.out.println("失败");

}

finally

{

try{

fi.close();

fo.close();

}

catch(IOException e)

{

e.printStackTrace();

}

}

}

}