What is a node in it?
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What are the difference between malloc() and calloc()?
What is long data type?
Why do we need arrays if all the operations that are performed on arrays can be performed on arraylist?
Can we remove element from arraylist while iterating?
How do treesets work internally?
Differentiate between queue and stack.
What is the difference between arrays sort and collections sort?
Differentiate between hashmap and hashtable.
How does the size of arraylist increases dynamically?
What data type is array?
Does arraylist have a tostring?
What package is arraylist?