Explain quick sort?
How many sorting algorithms are there?
Why heap sort is not used?
What is the difference between null and void?
Can we null keys in treemap?
What package is arraylist?
Why do we use trees in data structures?
What is the meaning of anonymous array? Explain with an example?
Why it is said that searching a node in a binary search tree is efficient than that of a simple binary tree?
How do you initialize an arraylist?
Is hashtable throw concurrentmodificationexception?
What is the basic of data structure?
What is dynamic array with example?