Java Size getSizeInKB(String size)

Description

get Size In KB

License

Open Source License

Declaration

public static String getSizeInKB(String size) throws NumberFormatException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.text.DecimalFormat;

public class Main {
    public static DecimalFormat fFileSize = new DecimalFormat("#.000");

    public static String getSizeInKB(String size) throws NumberFormatException {
        if (size.indexOf("-") != -1 || size.equals("0"))
            return "0";
        String s = size.substring(0, size.length() - 1);
        double ds = 0;
        try {// w w w  .jav  a2s  . c o m
            ds = Double.valueOf(s);
        } catch (NumberFormatException e) {
            System.out.println("NFE getSizeInKB str: " + size);
            throw e;
        }

        String u = size.substring(size.length() - 1);
        int sw = -1;
        if (u.equalsIgnoreCase("B"))
            sw = 0;
        if (u.equalsIgnoreCase("M"))
            sw = 1;
        else if (u.equalsIgnoreCase("G"))
            sw = 2;

        switch (sw) {
        case 0:
            ds = ds / 1000;
            break;
        case 1:
            ds = ds * 1000;
            break;
        case 2:
            ds = ds * 1000000;
            break;
        default:
            break;
        }
        return fFileSize.format(ds);

    }
}

Related

1. getReadableByteSize(long size)
2. getReadableSize(long size)
3. getSize(long octets)
4. getSizeAll(final long bytes)
5. getSizeFormat()
6. getSizeString(long bytes)
7. getSizeString(long number, Locale locale)
8. getSizeString(long size)
9. getSizeText(long size)