Question

I have map of string and array of strings as:

private static Map cacheTimeStamp = new HashMap<String, String[]>();

now how do i get value of this Map, i want to return array of String[] back to the calling function, tried using cacheTimeStamp.get("stringKey") but it returns object and i want to get array of strings out.

Answer 1

Define your map like this:

private static Map<String, String[]> cacheTimeStamp = new HashMap<String, String[]>();

Problem is that you are defining an open map without specifying map’s key and value object types. Which is essentially a key of type java.lang.Object and a value of type java.lang.Object.