How does a selection sort work?
How many parts are there in a declaration statement using data structures?
What is dequeue operation?
What are the applications of stack?
What is meant by binary tree traversal?
Can we remove element from arraylist while iterating?
Define probing?
What is array indexing?
Which is more efficient merge sort vs quicksort?
Why is hashmap not thread safe?
Who invented data structure?
Define in brief an array.
What are the major data structures used in the hierarchical data model?
Which is faster hashmap or concurrenthashmap?
What is sequential mapping in data structure?