Main.java Source code

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 java.util.Collection;

import java.util.Dictionary;
import java.util.Enumeration;
import java.util.Iterator;

import java.util.Vector;

public class Main {
    /**
     * Counts how often the given Object occurs in the given
     * collection using equals() for comparison.
     *
     * @param c collection in which to search
     * @param o object to search
     * @return frequency
     * @since Ant 1.8.0
     */
    public static int frequency(Collection<?> c, Object o) {
        // same as Collections.frequency introduced with JDK 1.5
        int freq = 0;
        if (c != null) {
            for (Iterator<?> i = c.iterator(); i.hasNext();) {
                Object test = i.next();
                if (o == null ? test == null : o.equals(test)) {
                    freq++;
                }
            }
        }
        return freq;
    }

    /**
     * Please use Vector.equals() or List.equals().
     * @param v1 the first vector.
     * @param v2 the second vector.
     * @return true if the vectors are equal.
     * @since Ant 1.5
     * @deprecated since 1.6.x.
     */
    public static boolean equals(Vector<?> v1, Vector<?> v2) {
        if (v1 == v2) {
            return true;
        }

        if (v1 == null || v2 == null) {
            return false;
        }

        return v1.equals(v2);
    }

    /**
     * Dictionary does not have an equals.
     * Please use  Map.equals().
     *
     * <p>Follows the equals contract of Java 2's Map.</p>
     * @param d1 the first directory.
     * @param d2 the second directory.
     * @return true if the directories are equal.
     * @since Ant 1.5
     * @deprecated since 1.6.x.
     */
    public static boolean equals(Dictionary<?, ?> d1, Dictionary<?, ?> d2) {
        if (d1 == d2) {
            return true;
        }

        if (d1 == null || d2 == null) {
            return false;
        }

        if (d1.size() != d2.size()) {
            return false;
        }

        Enumeration<?> e1 = d1.keys();
        while (e1.hasMoreElements()) {
            Object key = e1.nextElement();
            Object value1 = d1.get(key);
            Object value2 = d2.get(key);
            if (value2 == null || !value1.equals(value2)) {
                return false;
            }
        }

        // don't need the opposite check as the Dictionaries have the
        // same size, so we've also covered all keys of d2 already.

        return true;
    }
}