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What's the most important/difficult part of the Java 11 Exam?

 
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Hi Jeanne and Scott,

  I have looked at the Java 11 new features but I cannot tell which of them would be the most important to prep for or the most difficult to master for prep. What would say the most important or most difficult is for the exam? Thanks.

Ken
 
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Buy our book .

Seriously though. For the 1Z0-815, the hardest topic is definitely modules. People have less (or no) experience with it and there's a lot to memorize.
 
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Agreed on modules!  I also find anything involving constructors to be tricky for a lot people.  Many people use the default no-arg constructor provided by the compiler, and rarely call super() or this().  Constructors tend to be one of those things you don't think about unless you have to.  That said, since learning all about constructors I always explicitly write my constructors including calls to super().
 
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