Top Puzzles on Java Collections

This article provides a list of top Java puzzles on Java Collections for Java certification exams like SCJP/OCJP.
 

 

Popular & Tricky Puzzles Java Collections :

Article 1:

Java Quiz on adding elements in an ArrayList (Try it)
 

Article 2:
Java quiz on removing elements from an ArrayList (Try it)
 

Article 3:

Java quiz on Priority Queue (Try it)
 
Article 4:
Java quiz on Set and duplicates (Try it)
 
Article 5:
Java quiz on using Comparable along with Comparator (Try it)
 
Article 6:
Java quiz on LinkedList operations (Try it)
 
Article 7:
Java quiz on ArrayDeque operations (Try it)
 
Article 8:
Java quiz on removing elements from ArrayList containing instances of custom class (Try it)
 
Article 9:
Java quiz on ArrayList remove() with duplicates(Try it)

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