Java String Split by Line fastSplit(final String line, final char c)

Description

Splits a string using a character.

License

Apache License

Parameter

Parameter	Description
line	full text to split
c	character at which to split

Return

array of substrings or the original line if there are no characters c

Declaration

static public String[] fastSplit(final String line, final char c) 

Method Source Code

//package com.java2s;
/**/* w ww.j ava  2 s .c o m*/
 * 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.ArrayList;
import java.util.List;

public class Main {
    /**
     * Splits a string using a character.  Faster than String.split( regex )
     *
     * @param line full text to split
     * @param c    character at which to split
     * @return array of substrings or the original line if there are no characters c
     */
    static public String[] fastSplit(final String line, final char c) {
        int nextSplit = line.indexOf(c);
        if (nextSplit < 0) {
            return new String[] { line };
        }
        final List<String> splits = new ArrayList<String>();
        int lastSplit = -1;
        while (nextSplit > 0) {
            splits.add(line.substring(lastSplit + 1, nextSplit));
            lastSplit = nextSplit;
            nextSplit = line.indexOf(c, lastSplit + 1);
        }
        if (lastSplit + 1 < line.length()) {
            splits.add(line.substring(lastSplit + 1));
        }
        return splits.toArray(new String[splits.size()]);
    }
}

Related

1. split(String aLine, char delimiter, char beginQuoteChar, char endQuoteChar, boolean retainQuotes, boolean trimTokens)
2. split(String line)
3. split(String line)
4. split(String line)