import java.io.*;
class ByteArrayOutputStreamDemo {
  public static void main(String args[]) throws IOException {
    ByteArrayOutputStream f = new ByteArrayOutputStream();
    String s = "This should end up in the array";
    byte buf[] = s.getBytes();
    f.write(buf);
    System.out.println("Buffer as a string");
    System.out.println(f.toString());
    System.out.println("Into array");
    byte b[] = f.toByteArray();
    for (int i=0; i<b.length; i++) {
      System.out.print((char) b[i]); }
    System.out.println("\nTo an OutputStream()");
    OutputStream f2 = new FileOutputStream("test.txt");
    f.writeTo(f2);
    f2.close();
    System.out.println("Doing a reset");
    f.reset();
    for (int i=0; i<3; i++) f.write('X');
    System.out.println(f.toString());
  }
}