Get the number of bytes used by the modified UTF-8 encoded form of the given string. - Java java.lang

Java examples for java.lang:String UTF

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Description

Get the number of bytes used by the modified UTF-8 encoded form of the given string.

Demo Code

/*/* w ww  .  j av a 2s. com*/
 * JBoss, Home of Professional Open Source
 * Copyright 2008, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
//package com.java2s;

public class Main {
    /**
     * Get the number of bytes used by the modified UTF-8 encoded form of the given string.
     *
     * @param s the string
     * @return the length
     * @see java.io.DataInput#readUTF()
     */
    public static long getLongUTFLength(final String s) {
        final int length = s.length();
        long l = 0;
        for (int i = 0; i < length; i++) {
            final char c = s.charAt(i);
            if (c > 0 && c <= 0x7f) {
                l++;
            } else if (c <= 0x07ff) {
                l += 2L;
            } else {
                l += 3L;
            }
        }
        return l;
    }
}

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