Mention for which header list, you will found the last node contains the null pointer?
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What is the difference between hashset and hashtable?
What is difference between hashmap and arraylist?
Can hashmap have duplicate keys?
How will you free the memory that is allocated at run time?
Does treeset allow null?
Differentiate between push and pop?
Why sorting is used?
Why is hashmap faster than treemap?
Define collision in hashing?
Are linked lists considered linear or non-linear data structure?
Is pointer a variable in data structure?
What are the parts of root node?