java - HashMap string key -

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I have a bug in my Android app and what I can not find is wrong, something that I think is problematic And I need your help

I have low embarrassment 

  hashmap & lt; String, string & gt; Numbers = New Hashmap & lt; String, string & gt; ();   
 And I am including data like this,  
  numbers.put ("1", "one"); Numbers ("2", "two");   
 Then I search for it like this,  
  numbers.get ("1");   
 Is that correct? Please note that the above is working well, sometimes I see weird behavior as I mentioned earlier  
 update, I forgot "put in"   
 
 
 No, this will not work. You must put the same type of keys.  
 Maybe you mean  
  numbers ("1 one");

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