Learn Core Java

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• 

  Bogdan

  August 1, 2012 at 2:26 pm | #

  cool section! here’s some more:

  1) Junior java developer
  a) Basic ocjp (former scjp) questions:
  – What does static, final mean, purposes;
  – How many accesibility modifiers exist? Please describe them.
  – Why do you need a main method?
  – How many constructors can you have?
  – Define overwriting and overloading
  – Give java API implementations for overwriting and overloading
  – Describe the String class – unique properties
  – StringBuilder vs StringBuffer
  – Collections : please describe, give some examples and compare them to eachother
  – ArrayList vs Vector
  – HashMap vs HashTable
  – What’s a tree
  – What’s a map
  – Multithreading: describe the management in java
  – What’s a semaphone?
  – How many states are there for threads?
  – Describe the usage for synchronized word (2)
  – Serialization in java – a descrition and usage
  – Garbage collection in java – description and usage
  – Can you guarantee the garbage collection process?
  b) Simple design pattern questions:
  – Singleton please describe main features and coding
  – Factory please describe main features and coding
  – Have you used others? please describe them

  2) Intermediate and Senior level – depending on rate of good responses, additional questions to 1):

  http://centraladvisor.com/programming-2/java/java-developer-interview

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