Java String Last Index Of lastIndexOf(String input, char ch, int offset)

Description

Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling

License

Open Source License

Parameter

Parameter	Description
input	to check the indexOf on
ch	character to find the index of
offset	offset to start the reading from the end

Return

index of the character, or -1 if not found

Declaration

public static int lastIndexOf(String input, char ch, int offset) 

Method Source Code

//package com.java2s;
/*/* w  w  w.j  a v  a2s  . co m*/
 * Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
 *
 * 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 {
    /**
     * Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling
     *
     * @param input  to check the indexOf on
     * @param ch     character to find the index of
     * @param offset offset to start the reading from the end
     * @return index of the character, or -1 if not found
     */
    public static int lastIndexOf(String input, char ch, int offset) {
        for (int i = input.length() - 1 - offset; i >= 0; i--) {
            if (input.charAt(i) == ch) {
                return i;
            }
        }
        return -1;
    }

    /**
     * Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling
     *
     * @param input to check the indexOf on
     * @param ch    character to find the index of
     * @return index of the character, or -1 if not found
     */
    public static int lastIndexOf(String input, char ch) {
        return lastIndexOf(input, ch, 0);
    }
}

Related

1. lastIndexOf(final CharSequence cs, final CharSequence searchChar, final int start)
2. lastIndexOf(final CharSequence cs, final int searchChar, int start)
3. lastIndexOf(final String input, final char delim)
4. lastIndexOf(final String src, final String sub, int startIndex, int endIndex)
5. lastIndexOf(String baseString, String indexString)
6. lastIndexOf(String path, char ch)
7. lastIndexOf(String s, String sub, int startIndex, int endIndex)
8. lastIndexOf(String self, String pattern, Integer start)
9. lastIndexOf(String str, char searchChar)