Java String Split by Separator split(String s, String separator)

Description

Splits a string.

License

Open Source License

Parameter

Parameter	Description
s	the input string
separator	the part separator

Return

an array with at least one element.

Declaration

public static String[] split(String s, String separator) 

Method Source Code

//package com.java2s;
/*//www .j  a v a2 s. c  o  m
 * Copyright (C) 2014 Civilian Framework.
 *
 * Licensed under the Civilian License (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.civilian-framework.org/license.txt
 *
 * 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;

public class Main {
    /**
     * Splits a string.
     * @param s the input string
     * @param separator the part separator
     * @return an array with at least one element.
     */
    public static String[] split(String s, String separator) {
        int sepLength = separator.length();
        if (sepLength == 0)
            return new String[] { s };

        ArrayList<String> tokens = new ArrayList<>();
        int length = s.length();
        int start = 0;
        do {
            int p = s.indexOf(separator, start);
            if (p == -1)
                p = length;
            if (p > start)
                tokens.add(s.substring(start, p));

            start = p + sepLength;
        } while (start < length);

        return tokens.toArray(new String[tokens.size()]);
    }
}

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