Java File Size Get countFileSize(String pathname)

Description

count File Size

License

Apache License

Declaration

public static String countFileSize(String pathname) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.File;

import java.text.DecimalFormat;

public class Main {

    public static String countFileSize(String pathname) {
        String fileSizeString = "";
        try {/* w w w  . j a va  2  s. c  om*/
            File file = new File(pathname);
            DecimalFormat df = new DecimalFormat("#.00");
            long fileS = file.length();
            if (fileS < 1024) {
                fileSizeString = "0byte";
            } else if (fileS < 1048576) {
                fileSizeString = df.format((double) fileS / 1024) + "KB";
            } else if (fileS < 1073741824) {
                fileSizeString = df.format(((double) fileS / 1024 / 1024) - 0.01) + "MB";
            } else {
                fileSizeString = df.format((double) fileS / 1024 / 1024 / 1024) + "G";
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return fileSizeString;
    }

    public static String countFileSize(long fileSize) {
        String fileSizeString = "";
        try {
            DecimalFormat df = new DecimalFormat("#.00");
            long fileS = fileSize;
            if (fileS == 0) {
                fileSizeString = "0KB";
            } else if (fileS < 1024) {
                fileSizeString = df.format((double) fileS) + "B";
            } else if (fileS < 1048576) {
                fileSizeString = df.format((double) fileS / 1024) + "KB";
            } else if (fileS < 1073741824) {
                fileSizeString = df.format(((double) fileS / 1024 / 1024) - 0.01) + "MB";
            } else {
                fileSizeString = df.format((double) fileS / 1024 / 1024 / 1024) + "G";
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return fileSizeString;
    }
}

Related

1. countFileDisplaySize(long size)
2. fileSizeString(long bytes)
3. getFileKBSize(long fsize)
4. getFileSize(@Nonnull File file)
5. getFileSize(File dir)