Java Number Convert convertSize(Long size)

Description

convert Size

License

Open Source License

Declaration

public static String convertSize(Long size) 

Method Source Code

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

import java.math.BigDecimal;

public class Main {

    public static String convertSize(Long size) {
        String retStr = "";
        for (int i = 3; i > 0; i--) {
            double compSize = Math.pow(1024, i);
            double remainder = size / compSize;
            if (remainder > 1) {
                if (i == 3) {
                    retStr = round(remainder, 2, BigDecimal.ROUND_HALF_EVEN) + "G";
                    break;
                } else if (i == 2) {
                    retStr = round(remainder, 2, BigDecimal.ROUND_HALF_EVEN) + "M";
                    break;
                } else {
                    retStr = round(remainder, 2, BigDecimal.ROUND_HALF_EVEN) + "K";
                    break;
                }// w ww.j  a  v a2 s.c  om
            }
            retStr = round(remainder, 2, BigDecimal.ROUND_HALF_EVEN) + "K";
        }
        return retStr;
    }

    public static double round(double value, int scale, int roundingMode) {
        BigDecimal bd = new BigDecimal(value);
        bd = bd.setScale(scale, roundingMode);
        double retValue = bd.doubleValue();
        bd = null;
        return retValue;
    }
}

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5. convertScientificToStandard(double value)
6. convertSizeG1DetailsToSizeG1(final String size, final char units)
7. convertSizeToMB(long sizeInBytes)
8. convertsToLong(double v)
9. convertStringToObjectWrapper(String className, String value)