Java String Split by Separator split(String str, char separator)

Description

we can't use String.split as it is a JDK 1.4 method.

License

Apache License

Parameter

Parameter	Description
str	a parameter
separator	a parameter

Return

an array of string segments

Declaration

static public String[] split(String str, char separator) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2004, 2006 svnClientAdapter project and others.
 *
 * 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.//from  w  ww.  j ava 2s  .c  om
 *
 * Contributors:
 *     svnClientAdapter project committers - initial API and implementation
 ******************************************************************************/

import java.util.ArrayList;
import java.util.List;

public class Main {
    /**
     * we can't use String.split as it is a JDK 1.4 method.
     * //TODO Java 1.4 is not aproblem anymore. Isn't it ? 
     * @param str
     * @param separator
     * @return an array of string segments
     */
    static public String[] split(String str, char separator) {
        int pos = 0;
        List list = new ArrayList();
        int length = str.length();
        for (int i = 0; i < length; i++) {
            char ch = str.charAt(i);
            if (ch == separator) {
                list.add(str.substring(pos, i));
                pos = i + 1;
            }
        }
        if (pos != length) {
            list.add(str.substring(pos, length));
        }
        return (String[]) list.toArray(new String[list.size()]);
    }

    /**
     * split using a string separator
     * @param str
     * @param separator
     * @return an array of string segments
     */
    static public String[] split(String str, String separator) {
        List list = new ArrayList();
        StringBuffer sb = new StringBuffer(str);
        int pos;

        while ((pos = sb.indexOf(separator)) != -1) {
            list.add(sb.substring(0, pos));
            sb.delete(0, pos + separator.length());
        }
        if (sb.length() > 0) {
            list.add(sb.toString());
        }
        return (String[]) list.toArray(new String[list.size()]);
    }
}

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