How to Copy Paste file in java [Java Code]

copy Paste file in java code:

import java.io.*;//Package

class copyfile{

public static void main(String...str) throws IOException

{

int c;

FileInputStream fr=new FileInputStream("demo.pdf");//input file name

BufferedInputStream br=new BufferedInputStream(fr);

FileOutputStream fw=new FileOutputStream("testfile.pdf");//output file name

while((c=br.read())!=-1)

{

fw.write(c);

}

fr.close();

fw.close();

}

}