String str =
"BEGIN:VCARD\r\n" +
"VERSION:2.1\r\n" +
"FN:John Doe\r\n" +
"NOTE;QUOTED-PRINTABLE;CHARSET=UTF-8:=C2=A1Hola, mundo!\r\n" +
"END:VCARD\r\n";

Reader reader = new StringReader(str);
SyntaxRules rules = SyntaxRules.vcard();
VObjectReader vobjectReader = new VObjectReader(reader, rules);
vobjectReader.parse(new VObjectDataAdapter() {
	private boolean inVCard = false;

	public void onComponentBegin(String name, Context context) {
		if (context.getParentComponents().isEmpty() && "VCARD".equals(name)){
			inVCard = true;
		}
	}

	public void onComponentEnd(String name, Context context) {
		if (context.getParentComponents().isEmpty()) {
			//end of vCard, stop parsing
			context.stop();
		}
	}

	public void onProperty(VObjectProperty property, Context context) {
		if (inVCard) {
			System.out.println(property.getName() + " = " + property.getValue());
		}
	}
});
vobjectReader.close();

Writer writer = new OutputStreamWriter(System.out);
VObjectWriter vobjectWriter = new VObjectWriter(writer, SyntaxStyle.OLD);

vobjectWriter.writeBeginComponent("VCARD");
vobjectWriter.writeVersion("2.1");
vobjectWriter.writeProperty("FN", "John Doe");

VObjectProperty note = new VObjectProperty("NOTE", "¡Hola, mundo!");
note.getParameters().put(null, "QUOTED-PRINTABLE");
vobjectWriter.writeProperty(note);

vobjectWriter.writeEndComponent("VCARD");
vobjectWriter.close();