Code Pumpkin

Java Collection


Java Collection classes are heart of Java API.  It is essential to use built-in java collections like HashMap, ArrayList or LinkedList for accessing, storing and processing data in java applications.


  1. How does HashMap work internally in Java?
  2. HashMap vs Hashtable Vs SynchronizedMap Vs ConcurrentHashMap


  1. How is HashSet implemented internally in Java?
  2. Performance Issue with HashSet RemoveAll() method


  1. Producer Consumer Design Pattern using BlockingQueue

Java 8 Updates

  1. Stream API – Stream Collection Type

Java 9 updates

  1. Convenience Factory Methods for Collections

Total Post : 88
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