Java BufferedReader.ready()

public boolean ready()  throws IOException

//from  ww w . ja v a  2 s  . com
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());

  }
}