Java String Split by Delimiter split(String value, char delim)

Description

Splits the specified String with the specified delimiter.

License

Open Source License

Declaration

public static String[] split(String value, char delim) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;

import java.util.List;

public class Main {
    private static final String EMPTY_STRING = "";

    /**/*  ww w  .  j a  va 2 s.  c o  m*/
     * Splits the specified {@link String} with the specified delimiter. This
     * operation is a simplified and optimized version of
     * {@link String#split(String)}.
     */
    public static String[] split(String value, char delim) {
        final int end = value.length();
        final List<String> res = new ArrayList<String>();

        int start = 0;
        for (int i = 0; i < end; i++) {
            if (value.charAt(i) == delim) {
                if (start == i) {
                    res.add(EMPTY_STRING);
                } else {
                    res.add(value.substring(start, i));
                }
                start = i + 1;
            }
        }

        if (start == 0) { // If no delimiter was found in the value
            res.add(value);
        } else {
            if (start != end) {
                // Add the last element if it's not empty.
                res.add(value.substring(start, end));
            } else {
                // Truncate trailing empty elements.
                for (int i = res.size() - 1; i >= 0; i--) {
                    if (res.get(i).isEmpty()) {
                        res.remove(i);
                    } else {
                        break;
                    }
                }
            }
        }

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

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2. split(String string, String delimiter)
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