Java Locale Format formatBytes(long byteCount, Locale locale)

Description

Converts a byte-count to a formatted string suitable for display to the user.

License

Open Source License

Parameter

Parameter	Description
byteCount	The number of bytes.
locale	The locale used for formatting.

Return

The formatted string.

Declaration

public static synchronized String formatBytes(long byteCount, Locale locale) 

Method Source Code

//package com.java2s;
/*/* ww w.  j a v  a2  s .c o  m*/
 This file is part of Subsonic.
    
 Subsonic is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
    
 Subsonic 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 General Public License for more details.
    
 You should have received a copy of the GNU General Public License
 along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
    
 Copyright 2009 (C) Sindre Mehus
 */

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;

import java.util.Locale;

public class Main {
    /**
     * Converts a byte-count to a formatted string suitable for display to the user.
     * For instance:
     * <ul>
     * <li><code>format(918)</code> returns <em>"918 B"</em>.</li>
     * <li><code>format(98765)</code> returns <em>"96 KB"</em>.</li>
     * <li><code>format(1238476)</code> returns <em>"1.2 MB"</em>.</li>
     * </ul>
     * This method assumes that 1 KB is 1024 bytes.
     *
     * @param byteCount The number of bytes.
     * @param locale    The locale used for formatting.
     * @return The formatted string.
     */
    public static synchronized String formatBytes(long byteCount, Locale locale) {

        // More than 1 GB?
        if (byteCount >= 1024 * 1024 * 1024) {
            NumberFormat gigaByteFormat = new DecimalFormat("0.00 GB", new DecimalFormatSymbols(locale));
            return gigaByteFormat.format((double) byteCount / (1024 * 1024 * 1024));
        }

        // More than 1 MB?
        if (byteCount >= 1024 * 1024) {
            NumberFormat megaByteFormat = new DecimalFormat("0.0 MB", new DecimalFormatSymbols(locale));
            return megaByteFormat.format((double) byteCount / (1024 * 1024));
        }

        // More than 1 KB?
        if (byteCount >= 1024) {
            NumberFormat kiloByteFormat = new DecimalFormat("0 KB", new DecimalFormatSymbols(locale));
            return kiloByteFormat.format((double) byteCount / 1024);
        }

        return byteCount + " B";
    }
}

Related

1. formatAdena(long amount)
2. formatarDataArquivoStr(String data)
3. formatarNumeroBr(Double numero)
4. formataValor(Double valor)
5. formatBytes(final long bytes)
6. formatBytesForDisplay(long amount)
7. formatComma(String number)
8. formatDate(Calendar cal, String format)
9. formatDate(Date date, String format)