What is dangling pointer and how to avoid it?
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Does treemap allow null values?
What is data and its type?
How is the front of the queue calculated in data structure?
Differentiate between comparable and comparator.
What is hashing with example?
Differentiate between hashset and hashmap.
What is B+ tree?
6 Answers BMC, CMC, Satyam, TCS,
How do you sort a map by key?
How many parts are there in a declaration statement using data structures?
How do you increase the capacity of an arraylist?
Explain merge sort algorithms.
An array having 100 elements have numbers from 1 to 99 randomly out of which any number is repeated. Find the repeated number in minimum time and space complexity.