Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2013 Wajdi Hh "wajdihh@gmail.com".
 *
 * 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.
 */

public class Main {
    public static boolean containsIgnoreCase(String src, String what) {
        final int length = what.length();
        if (length == 0)
            return true; // Empty string is contained

        final char firstLo = Character.toLowerCase(what.charAt(0));
        final char firstUp = Character.toUpperCase(what.charAt(0));

        for (int i = src.length() - length; i >= 0; i--) {
            // Quick check before calling the more expensive regionMatches() method:
            final char ch = src.charAt(i);
            if (ch != firstLo && ch != firstUp)
                continue;

            if (src.regionMatches(true, i, what, 0, length))
                return true;
        }

        return false;
    }
}