trim Trailing Whitespace - Android java.lang

Android examples for java.lang:String Strip

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Description

trim Trailing Whitespace

Demo Code

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Iterator;
import java.util.UUID;

public class Main{

    /**//from   www  .j av a  2  s  .  c o m
     * Trims trailing whitespace. Removes any of these characters:
     * 0009, HORIZONTAL TABULATION
     * 000A, LINE FEED
     * 000B, VERTICAL TABULATION
     * 000C, FORM FEED
     * 000D, CARRIAGE RETURN
     * 001C, FILE SEPARATOR
     * 001D, GROUP SEPARATOR
     * 001E, RECORD SEPARATOR
     * 001F, UNIT SEPARATOR
     *
     * @return "" if source is null, otherwise string with all trailing whitespace removed
     */
    public static CharSequence trimTrailingWhitespace(CharSequence source) {

        if (source == null)
            return "";

        int i = source.length();

        // loop back to the first non-whitespace character
        do {
            i--;
        } while (i >= 0 && Character.isWhitespace(source.charAt(i)));

        return source.subSequence(0, i + 1);
    }

}

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