Java tutorial
import java.io.BufferedReader; import java.io.StringReader; import java.nio.CharBuffer; public class Main { public static void main(String[] args) throws Exception { String s = "from java2s.com"; StringReader sr = new StringReader(s); // create new buffered reader BufferedReader br = new BufferedReader(sr); // Destination source is created CharBuffer target = CharBuffer.allocate(s.length()); // ready is invoked to test if character stream is ready if (br.ready()) { br.read(target); } System.out.print(target.array()); } }