file Size To String - Java java.io

Java examples for java.io:File Size

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Description

file Size To String

Demo Code

/*/*from  w  w w. ja  v  a  2  s  . c  o m*/
 * Copyright (C) 2011 Thedeath<www.fseek.org>
 *
 * 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/>.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        long size = 2;
        System.out.println(fileSizeToString(size));
    }

    public static String fileSizeToString(long size) {
        String symbol = "B";
        double length = (Long) size;
        int round = 0;
        while (length > 1024) {
            switch (round) {
            case 0:
                symbol = "KB";
                break;
            case 1:
                symbol = "MB";
                break;
            case 2:
                symbol = "GB";
                break;
            case 3:
                symbol = "TB";
                break;
            }
            length = length / 1024;
            round++;
        }
        return (int) length + " " + symbol;
    }
}

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