Java File Size Readable Format getReadableFileSize(int size)

Description

Get the file size in a human-readable string.

License

Apache License

Parameter

Parameter	Description
size	a parameter

Declaration

public static String getReadableFileSize(int size) 

Method Source Code

//package com.java2s;
/*/*from   w  w  w . j  a  v  a2 s . com*/
 * Copyright (C) 2007-2008 OpenIntents.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file 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.
 */

import java.text.DecimalFormat;

public class Main {
    /**
     * Get the file size in a human-readable string.
     *
     * @param size
     * @return
     * @author paulburke
     */
    public static String getReadableFileSize(int size) {
        final int BYTES_IN_KILOBYTES = 1024;
        final DecimalFormat dec = new DecimalFormat("###.#");
        final String KILOBYTES = " KB";
        final String MEGABYTES = " MB";
        final String GIGABYTES = " GB";
        float fileSize = 0;
        String suffix = KILOBYTES;

        if (size > BYTES_IN_KILOBYTES) {
            fileSize = size / BYTES_IN_KILOBYTES;
            if (fileSize > BYTES_IN_KILOBYTES) {
                fileSize = fileSize / BYTES_IN_KILOBYTES;
                if (fileSize > BYTES_IN_KILOBYTES) {
                    fileSize = fileSize / BYTES_IN_KILOBYTES;
                    suffix = GIGABYTES;
                } else {
                    suffix = MEGABYTES;
                }
            }
        }
        return String.valueOf(dec.format(fileSize) + suffix);
    }
}

Related

1. formatToolBarDisplay(String text, int size)
2. getFileSizeInByte(File file)
3. getFileSizeInBytes(File f)
4. getFileSizeInMB(String fileName)
5. getHumanSize(File dir)
6. getReadableFileSize(long fileSizeInBytes)
7. getReadableFileSize(long size)
8. getReadableFileSize(long size, boolean abbreviation)
9. toHuman(Double n)