Java Long Number Readable Format formatBytes(long bytes)

Description

format Bytes

License

Apache License

Declaration

public static String formatBytes(long bytes) 

Method Source Code

//package com.java2s;
/*/*from w w  w .j av  a2 s .c  om*/
Copyright 2001-2014 Vladimir Lysyy
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this source code except in compliance with the License.
You may obtain a copy of the License at
    
http://www.apache.org/licenses/LICENSE-2.0
    
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

public class Main {
    public static String formatBytes(long bytes) {
        return formatBytes(bytes, false);
    }

    /**
     * Human-friendly size formatter
     * 
     * @param bytes
     * @param si
     * @return
     */
    public static String formatBytes(long bytes, boolean si) {
        // http://stackoverflow.com/a/3758880/267482
        int unit = si ? 1000 : 1024;
        if (bytes < unit)
            return bytes + " B";
        int exp = (int) (Math.log(bytes) / Math.log(unit));
        String pre = (si ? "kMGTPE" : "KMGTPE").charAt(exp - 1) + (si ? "" : "i");
        return String.format("%.1f %sB", bytes / Math.pow(unit, exp), pre);
    }
}

Related

1. formatBytes(long bytes)
2. formatBytes(long bytes)
3. formatBytes(long bytes)
4. formatBytes(long bytes)
5. formatBytes(long bytes)
6. formatBytes(long bytes)
7. formatBytes(long bytes)
8. formatBytes(long d)
9. formatBytes(long l)