Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.NamedNodeMap;
import org.w3c.dom.Node;

public class Main {
    /**
     * @return An attribute coerced to an integer.
     */
    public static int getIntAttribute(Node node, String attr, int def) {
        String value = getAttribute(node, attr);
        if (value == null) {
            return def;
        }
        try {
            return Integer.parseInt(value);
        } catch (NumberFormatException e) {
            return def;
        }
    }

    /**
     * @return An attribute coerced to an integer.
     */
    public static int getIntAttribute(Node node, String attr) {
        return getIntAttribute(node, attr, 0);
    }

    /**
     * Extracts an attribute from a node.
     *
     * @param node
     * @param attr
     * @param def
     * @return The value of the attribute, or def
     */
    public static String getAttribute(Node node, String attr, String def) {
        NamedNodeMap attrs = node.getAttributes();
        Node val = attrs.getNamedItem(attr);
        if (val != null) {
            return val.getNodeValue();
        }
        return def;
    }

    /**
     * @param node
     * @param attr
     * @return The value of the given attribute, or null if not present.
     */
    public static String getAttribute(Node node, String attr) {
        return getAttribute(node, attr, null);
    }
}