Here you can find the source of createMap_pollutantHourly()
private static HashMap<String, String> createMap_pollutantHourly()
//package com.java2s; //License from project: Open Source License import java.util.HashMap; public class Main { private static HashMap<String, String> createMap_pollutantHourly() { HashMap<String, String> map = new HashMap<String, String>(); map.put("so2", "SulphurDioxide"); map.put("pm10", "PM10"); map.put("co", "CarbonMonoxide"); map.put("no2", "NitrogenDioxide"); map.put("o3", "Ozone"); return map; }// w w w. j a v a2 s . c o m }