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Dan's Q of Collections level

 
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Hi All,
I don't know if asked before but I want to know how much in detail are we supposed to follow the Dan's exams specially for Collections and Threads for SCJP. Ex. the following Q is in the Collections exam.

He has exam 1 and exam 2 for collections , Should I learn and follow all this questions .
Also the thread questions are also really tough I feel. I should follow these too strictly ?
Any suggestions are welcome.
 
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I have the same concern. Do we have to know the methods for each of the classes in the Collections framework?
thanks.
 
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We are supposed to know the well-known methods... U know, the collections classes are very very useful in the real world... It's good to have a strong foundation on them...
But for the exam, I can say that the well-known methods are enough...
 
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Yes, that question is a little beyond the scope of the real exam. I'll remove it from the next version of my exam.
Thank you.
 
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