Here you can find the source of getNamespaceURI(Node node)
public static String getNamespaceURI(Node node)
//package com.java2s; /*/*from w w w. ja va2 s. c o m*/ * Copyright 1999-2002,2004,2005 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import org.w3c.dom.Node; public class Main { public static String getNamespaceURI(Node node) { return node.getNamespaceURI(); } }