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MCQ

Which of the following name does not relate to stacks?

FIFO lists

LIFO list

Piles

Push-down lists

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MCQ

Given below is the Node class to perform basic list operations and a Stack class with a no arg constructor. Select from the options the appropriate push() operation that can be included in the Stack class. Also

public void push(Object item)
{
	Node temp = new Node(item,first);
	first = temp;
	size++;
}

public void push(Object item)
{
	Node temp = new Node(item,first);
	first = temp.getNext();
	size++;
}

public void push(Object item)
{
	Node temp = new Node();
	first = temp.getNext();
	first.setItem(item);
	size++;
}

public void push(Object item)
{
	Node temp = new Node();
	first = temp.getNext.getNext();
	first.setItem(item);
	size++;
}

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MCQ

The prefix form of A-B/ (C * D ^ E) is,

-/*^ACBDE

-ABCD*^DE

-A/B*C^DE

-A/BC*^DE

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MCQ

Pushing an element into stack already having five elements and stack size of 5 , then stack becomes

Overflow

Crash

Underflow

User flow

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MCQ

What will be the postfix expression for following infix expression - A / B ^ C - D

A B / ^ C D -

A B ^ / C D -

A B C ^ / D -

A B C / ^ D -

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MCQ

In a Stack the command to access nth element from the top of the stacks will be

S[Top-n]

S [Top+n]

S [top-n-1]

None of the above

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