In this problem you need to parse the string, so I think you need to do it char by char.

I used BufferedReader.readLine, and then parsed the aquired string...

I tried using a StringReader created out of the string, and then used it's read() method to get chars out of it, but you could also read the chars directly from the string (charAt(int)), or you could dump it into an char array.

The first test is the sample test (I'm pretty sure). Note that -0.051 gets printed as 0.0 withouth a minus sign in front.