Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main {
    private static DecimalFormat df = new DecimalFormat("#0.00");

    /**
     * @param currentSpeed speed int byte per second
     * @return String with unit such as  3.2Gb/s  200Mb/s  ,...
     */
    public static String getSpeedInAutoUnit(double currentSpeed) {
        String temp = "0.0 B/s";
        df.setRoundingMode(RoundingMode.HALF_UP);

        if (currentSpeed / (1024 * 1024 * 1024) > 1) {//GB
            temp = df.format(currentSpeed / (1024 * 1024 * 1024)) + "GB/s";
        } else if (currentSpeed / (1024 * 1024) > 1) {//MB
            temp = df.format(currentSpeed / (1024 * 1024)) + "MB/s";
        } else if (currentSpeed / (1024) > 1) {//Kb
            temp = df.format(currentSpeed / (1024)) + "KB/s";
        } else if (currentSpeed > 0) {//b
            temp = df.format(currentSpeed / (1024)) + "B/s";
        }

        return temp;
    }
}