Java String Split by Separator split(final String str, final char[] separators)

Description

Split string to array.

License

Open Source License

Parameter

Parameter	Description
str	String to split.
separators	Separators.

Return

Split values.

Declaration

public static List<String> split(final String str,
        final char[] separators) 

Method Source Code

//package com.java2s;
// and/or modify it under the terms of the GNU General Public License 

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**//from  w ww. jav  a2  s. co  m
     * Split string to array.
     * 
     * @param str
     *            String to split.
     * @param separators
     *            Separators.
     * @return Split values.
     */
    public static List<String> split(final String str,
            final char[] separators) {
        int lastPos = 0;
        List<String> arr = new ArrayList<String>();
        for (int pos = 0; pos != str.length(); ++pos) {
            char ch = str.charAt(pos);
            for (char sep : separators) {
                if (ch == sep) {
                    if (lastPos != pos) {
                        arr.add(str.substring(lastPos, pos));
                    }
                    lastPos = pos + 1;
                    break;
                }
            }
        }
        if (lastPos != str.length()) {
            arr.add(str.substring(lastPos, str.length()));
        }
        return arr;
    }

    /**
     * Split string to array.
     * 
     * @param str
     *            String to split.
     * @param separator
     *            Separator.
     * @return Split values.
     */
    public static List<String> split(final String str, final char separator) {
        List<String> arr = new ArrayList<String>();
        int pos = 0, lastPos = 0;
        while ((pos = str.indexOf(separator, lastPos)) != -1) {
            arr.add(str.substring(lastPos, pos));
            lastPos = pos + 1;
        }
        if (str.length() > lastPos) {
            arr.add(str.substring(lastPos));
        } else {
            arr.add("");
        }
        return arr;
    }

    /**
     * Split string to array.
     * 
     * @param str
     *            String to split.
     * @param separator
     *            Separator.
     * @return Split values.
     */
    public static List<String> split(final String str,
            final String separator) {
        List<String> arr = new ArrayList<String>();
        int pos = 0, lastPos = 0;
        while ((pos = str.indexOf(separator, lastPos)) != -1) {
            arr.add(str.substring(lastPos, pos));
            lastPos = pos + separator.length();
        }
        if (str.length() > lastPos) {
            arr.add(str.substring(lastPos));
        } else {
            arr.add("");
        }
        return arr;
    }
}

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