java coding

Write a recursive method body for the hasLabel method whose contract is given below. Do not use magic numbers, breaks or multiple returns. The XML Tree Interface API is attached./** * Reports whether the given label appears as a tag or text * in the given XML Tree. * @param xml * the XML Tree * @param label * the label name * @return true if the given label appears in the given XML Tree, * false otherwise * @ensures * hasLabel = * [true if the given label appears in the given XML Tree, * false otherwise] * */private static boolean hasLabel (XML Tree xml, String label)