Java OutputStream.close()

public void close()  throws IOException

//from  w w  w  .j av  a  2s  . com
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class Main {

  public static void main(String[] args) {
    try {

      OutputStream os = new FileOutputStream("test.txt");

      InputStream is = new FileInputStream("test.txt");

      // write something
      os.write('A');

      // flush the stream
      os.flush();

      // close the stream but it does nothing
      os.close();

      // read what we wrote
      System.out.println((char) is.read());
      is.close();
    } catch (Exception ex) {
      ex.printStackTrace();
    }

  }
}