Which of the following is true?Optionspeek() method returns the object at the bottom of the current queuepeek() method throws an exception at the time of returning the front elementAll of thesepeek() method returns null value when the queue is empty
Question
Which of the following is true?Optionspeek() method returns the object at the bottom of the current queuepeek() method throws an exception at the time of returning the front elementAll of thesepeek() method returns null value when the queue is empty
Solution
The correct answer is: peek() method returns null value when the queue is empty.
Here's why:
The peek() method in Java is used to look at the object at the top of the stack without removing it. It does not return the object at the bottom of the current queue, so the first option is incorrect.
The peek() method does not throw an exception when returning the front element. If the queue is empty, it returns null instead of throwing an exception. So, the second option is also incorrect.
Since the first two options are incorrect, the third option (All of these) is also incorrect.
Therefore, the only correct option is the fourth one: peek() method returns null value when the queue is empty.
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