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.
 */

public class Main {
    private static final int NOT_FOUND = -1;

    /**
     * <p>Finds the first index in the {@code CharSequence} that matches the
     * specified character.</p>
     *
     * @param cs         the {@code CharSequence} to be processed, not null
     * @param searchChar the char to be searched for
     * @param start      the start index, negative starts at the string start
     * @return the index where the search char was found, -1 if not found
     */
    static int indexOf(final CharSequence cs, final int searchChar, int start) {
        if (cs instanceof String) {
            return ((String) cs).indexOf(searchChar, start);
        }
        final int sz = cs.length();
        if (start < 0) {
            start = 0;
        }
        for (int i = start; i < sz; i++) {
            if (cs.charAt(i) == searchChar) {
                return i;
            }
        }
        return NOT_FOUND;
    }

    /**
     * Used by the indexOf(CharSequence methods) as a green implementation of indexOf.
     *
     * @param cs         the {@code CharSequence} to be processed
     * @param searchChar the {@code CharSequence} to be searched for
     * @param start      the start index
     * @return the index where the search sequence was found
     */
    static int indexOf(final CharSequence cs, final CharSequence searchChar, final int start) {
        return cs.toString().indexOf(searchChar.toString(), start);
        //        if (cs instanceof String && searchChar instanceof String) {
        //            // TODO: Do we assume searchChar is usually relatively small;
        //            //       If so then calling toString() on it is better than reverting to
        //            //       the green implementation in the else block
        //            return ((String) cs).indexOf((String) searchChar, start);
        //        } else {
        //            // TODO: Implement rather than convert to String
        //            return cs.toString().indexOf(searchChar.toString(), start);
        //        }
    }
}