while ((readCounts=bufferedInputStream.read(bytes))!=-1) { bufferedOutputStream.write(bytes,0,bytes.length); }

This code reads data from a BufferedInputStream and writes it to a BufferedOutputStream in a loop.

The loop continues as long as the readCounts variable is not equal to -1. The read() method of the BufferedInputStream reads a chunk of data into the byte array called bytes, and returns the number of bytes read.

The write() method of the BufferedOutputStream writes the entire byte array to the output stream. The loop writes all the bytes read to the output stream until there is no more data to read.

Note that the second parameter of the write() method is bytes.length, which means the entire byte array will be written every time. This is incorrect, as the actual number of bytes read should be used instead of the entire length of the byte array.