Pergunta de entrevista da empresa Barclays
In general I was asked the simplest questions in Barcap. The most difficult tech question was: (Java question) . Suppose you have a class which has a HashMap as an instance variable. How do you design a getter method so that the map returned does not corrupt the original map.
Resposta da entrevista
Sigiloso
28 de out. de 2012
I answered that you can wrap the original map with Collections.unmodifiableMap() to leave the original map intact.
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