What will be the output of the following code snippet?from queue import LifoQueuestack = LifoQueue(maxsize=3) stack.put(1)stack.put(2)stack.put(3)stack.get()stack.put(4, block=False) print(stack.full())OptionsTrueFalseErrorNone
Question
What will be the output of the following code snippet?from queue import LifoQueuestack = LifoQueue(maxsize=3) stack.put(1)stack.put(2)stack.put(3)stack.get()stack.put(4, block=False) print(stack.full())OptionsTrueFalseErrorNone
Solution
The output of the code snippet will be True.
Here's the step by step explanation:
-
A
LifoQueue(Last In, First Out Queue) is created with a maximum size of 3. This means it can hold up to 3 items at a time. -
The
put()method is used to add the numbers 1, 2, and 3 to the stack. At this point, the stack is full. -
The
get()method is used to remove the most recently added item from the stack. Since this is a LifoQueue, the item that gets removed is 3 (the last item that was added). Now, the stack contains the numbers 1 and 2, and has space for one more item. -
The
put()method is used again to add the number 4 to the stack. Theblock=Falseargument means that if the stack is full, the method will not wait for a free slot and will proceed immediately. In this case, since there is a free slot in the stack, the number 4 is added successfully. -
Finally, the
full()method is used to check if the stack is full. Since all three slots in the stack are occupied (by the numbers 1, 2, and 4), the method returnsTrue.
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