package com.farriver.bwf.common.utilities; import org.jetbrains.annotations.Nullable; import java.text.SimpleDateFormat; import java.util.Date; public class NoGenerator { @Nullable public static String GenerateDateNo() { SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmssSSS"); String str = formatter.format(new Date()); str += (int) ((Math.random() * 9 + 1) * 10000); return str; } }