Can arraylist contain duplicates?
How hashmap increases its size?
What does quick sort do?
How does the size of arraylist increases dynamically?
Describe the merge sort principle and what will be its time complexity?
In the given binary tree, using array you can store the node 4 at which location? 1 2 3 - - 4 - - 5
Why set will not allow duplicates?
How does variable declaration affect memory allocation?
Mention for which header list, you will found the last node contains the null pointer?
What are the different types of data type?
What is the use of sorting the data?
What are common data structures?
What is the difference between data type and data structure?