Merge "OPP: Format transfer percentage using DecimalFormat"

import java.io.File;

import java.io.File;

import java.io.IOException;

import java.io.IOException;

import java.math.RoundingMode;

import java.text.DecimalFormat;

import java.util.ArrayList;

import java.util.ArrayList;

import java.util.List;

import java.util.List;

import java.util.concurrent.ConcurrentHashMap;

import java.util.concurrent.ConcurrentHashMap;

     * Helper function to build the progress text.

     * Helper function to build the progress text.

     */

     */

    public static String formatProgressText(long totalBytes, long currentBytes) {

    public static String formatProgressText(long totalBytes, long currentBytes) {

        if (totalBytes <= 0) {

        DecimalFormat df = new DecimalFormat("0%");

            return "0%";

        df.setRoundingMode(RoundingMode.DOWN);

        }

        double percent = 0.0;

        long progress = currentBytes * 100 / totalBytes;

        if (totalBytes > 0) {

        StringBuilder sb = new StringBuilder();

            percent = currentBytes / (double) totalBytes;

        sb.append(progress);

        }

        sb.append('%');

        return df.format(percent);

        return sb.toString();

    }

    }

    /**

    /**