Here you can find the source of mlToOz(String vol_ml)
public static String mlToOz(String vol_ml)
//package com.java2s; import java.text.DecimalFormat; public class Main { private static DecimalFormat df2 = new DecimalFormat("0.00"); public static String mlToOz(String vol_ml) { double vol = Double.parseDouble(vol_ml); return df2.format(vol * 0.0338140225589); }/*ww w. j a v a2s .c o m*/ public static Double mlToOz(Double vol_ml) { return vol_ml * 0.0338140225589; } }