What are the disadvantages of using collection classes over arrays?
How does sort function work?
What does map stand for?
Define forest?
What are the 3 types of variables?
Can we add or delete an element after assigning an array?
Does treemap allow null keys?
What is the meaning of anonymous array? Explain with an example?
Which is better hashmap or hashtable?
How does hashset work internally in java?
What is difference between stack and queue?
What is a B tree?
What differences exist between hashmap and hashtable?
What are the topics in data structures?
What are linked list?