Generate human Readable Byte Count - Android java.io

Android examples for java.io:File Size

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Description

Generate human Readable Byte Count

Demo Code


/*******************************************************************************
 * Copyright (c) 2015 btows.com./* w w  w. j a  va2s  .c om*/
 * 
 * This program 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.
 * 
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
 
public class Main {

  public static String humanReadableByteCount(long bytes) {
    int unit = 1024;
    if (bytes < unit)
      return bytes + " B";
    int exp = (int) (Math.log(bytes) / Math.log(unit));
    String pre = "KMGTPE".charAt(exp - 1) + "";
    return String.format("%.1f %sB", bytes / Math.pow(unit, exp), pre);
  }

}

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