Convert Map to Map

Question

How can I convert Map to Map ?

This does not work:

Map map = ne         


        

Answer 1

As you are casting from Object to String I recommend you catch and report (in some way, here I just print a message, which is generally bad) the exception.

    Map map = new HashMap(); //Object is containing String
    Map newMap =new HashMap();

    for (Map.Entry entry : map.entrySet()) {
        try{
            newMap.put(entry.getKey(), (String) entry.getValue());
        }
        catch(ClassCastException e){
            System.out.println("ERROR: "+entry.getKey()+" -> "+entry.getValue()+
                               " not added, as "+entry.getValue()+" is not a String");
        }
    }