Choose one that is NOT valid.Astack.pop() --> top data get removed from the stackBlinkedlist.get(m) --> the element at index m is accessed from the LinkedList objectCstack.empty() --> returns true if the current stack is empty, or it returns false when the stack is not emptyDQueue queue = new Queue(); --> create a Queue object
Question
Choose one that is NOT valid.Astack.pop() --> top data get removed from the stackBlinkedlist.get(m) --> the element at index m is accessed from the LinkedList objectCstack.empty() --> returns true if the current stack is empty, or it returns false when the stack is not emptyDQueue queue = new Queue(); --> create a Queue object
Solution 1
The option that is NOT valid is D. "Queue queue = new Queue();". In Java, you cannot directly create an object of Queue because it is an interface in Java, not a class. You can create an instance of classes implementing Queue interface like LinkedList, PriorityQueue, etc. For example, you can use "Queue queue = new LinkedList();" to create a Queue object.
Solution 2
The option that is NOT valid is D. "Queue queue = new Queue();". In Java, you cannot directly create an object of Queue because it is an interface in Java, not a class. You can create an instance of classes implementing Queue interface like LinkedList or PriorityQueue. For example, you can use "Queue queue = new LinkedList();" or "Queue queue = new PriorityQueue();".
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