Explain the implementation of an AVL tree and Binary tree.
Why is hashing used?
Define 2-3 tree?
What does a bubble chart show?
Is treeset synchronized?
For which header list, the last node contains the null pointer?
Can hashtable have duplicate values?
Why do we use collections?
What are the data structures used in RDBMS, Network data model & Hierarchical data model?
Which collection is fail safe?
Is data structure a data type?
What data type is enum?
Is hashset thread safe?