Java String Split by Delimiter split(final String input, final char delimiter)

Description

split

License

Open Source License

Declaration

public static List<String> split(final String input, final char delimiter) 

Method Source Code

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

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

public class Main {
    public static List<String> split(final String input, final char delimiter) {
        return split(input, delimiter, false);
    }//from  w w w. j a v  a2  s.c  o m

    public static List<String> split(final String input, final char delimiter, final boolean emptyTokens) {
        final ArrayList<String> list = new ArrayList<String>();
        if (input == null || input.length() < 1)
            return list;

        int currentChar = 0;
        int nextChar = input.indexOf(delimiter);
        while (nextChar > 0) {
            if (input.charAt(currentChar) != delimiter)
                list.add(input.substring(currentChar, nextChar));
            else if (emptyTokens)
                list.add("");
            currentChar = nextChar;
            currentChar++;
            nextChar = input.indexOf(delimiter, currentChar);
        }
        if (emptyTokens && currentChar == input.length())
            list.add("");
        else
            list.add(input.substring(currentChar));
        return list;
    }

    public static List<String> split(final String input, final char delimiter, final int maxTokens) {
        return split(input, delimiter, maxTokens, false);
    }

    public static List<String> split(final String input, final char delimiter, final int maxTokens,
            final boolean emptyTokens) {
        if (maxTokens <= 0)
            return split(input, delimiter, emptyTokens);

        final ArrayList<String> list = new ArrayList<String>();
        if (input == null || input.length() < 1)
            return list;

        int currentChar = 0;
        int nextChar = input.indexOf(delimiter);
        while (nextChar > 0) {
            if (input.charAt(currentChar) != delimiter) {
                if (list.size() == maxTokens - 1) {
                    list.add(input.substring(currentChar));
                    return list;
                }
                list.add(input.substring(currentChar, nextChar));
            } else if (emptyTokens) {
                if (list.size() == maxTokens - 1) {
                    list.add(input.substring(currentChar));
                    return list;
                }
                list.add("");
            }
            currentChar = nextChar;
            currentChar++;
            nextChar = input.indexOf(delimiter, currentChar);
        }
        if (emptyTokens && currentChar == input.length())
            list.add("");
        else
            list.add(input.substring(currentChar));
        return list;
    }
}

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2. fastSplit(String string, String delimiter)
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6. split(final String str, final char delim)
7. split(final String str, final String delimiter)