Java Decimal Format getSpaceMessage(final double bytes)

Description

get Space Message

License

Open Source License

Declaration

public static String getSpaceMessage(final double bytes) 

Method Source Code

//package com.java2s;
import java.text.DecimalFormat;

public class Main {
    private static final long KILO = 1024;
    private static final long MEGA = KILO * KILO;
    private static final long GIGA = KILO * MEGA;
    private static final long TERA = KILO * GIGA;
    private static final DecimalFormat SPACE_FORMAT = new DecimalFormat("##0.#");

    public static String getSpaceMessage(final double bytes) {
        if (bytes < (KILO * 0.8)) {
            return bytes + "B";
        }//from w  w w .j ava  2s.  c o  m

        if (bytes < (MEGA * 0.8)) {
            final double kilos = bytes / KILO;
            return SPACE_FORMAT.format(kilos) + "kB";
        }

        if (bytes < (GIGA * 0.8)) {
            final double megas = bytes / MEGA;
            return SPACE_FORMAT.format(megas) + "MB";
        }

        if (bytes < (TERA * 0.8)) {
            final double gigas = bytes / GIGA;
            return SPACE_FORMAT.format(gigas) + "GB";
        }

        final double teras = bytes / TERA;
        return SPACE_FORMAT.format(teras) + "TB";
    }
}

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