COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Enqueue/Dequeue
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Push/Pop
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Input/Output
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Insert/Extract
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Detailed explanation-1: -enqueue is a queue operation where you add an item at the back of a queue. dequeue is a queue operation where you remove an item from the front of a queue.
Detailed explanation-2: -Queue is an abstract data structure, somewhat similar to Stacks. Unlike stacks, a queue is open at both its ends. One end is always used to insert data (enqueue) and the other is used to remove data (dequeue). Queue follows First-In-First-Out methodology, i.e., the data item stored first will be accessed first.
Detailed explanation-3: -The remove() method of Queue Interface returns and removes the element at the front of the container. It deletes the head of the container. The method throws an NoSuchElementException when the Queue is empty.
Detailed explanation-4: -Insertion and deletion in queues takes place from the opposite ends of the list. The insertion takes place at the rear of the list and the deletion takes place from the front of the list.