How to answer the following questions?
Which of the following statements is a legal declaration/instantiation of a Stack object?
Evaluate the following postfix expression: 6 4 + 3 10 * 2 2 2 - + * + What is the highest number of elements on our stack at any one time
A. 2 B. 3 C. 4 D. 5
While evaluating the following postfix expression: 6 4 + 3 10 * + 2 2 - + how many times is the push operation called? A. 1 B. 6 C. 9 D. 11 E. 18
How did you decide to handle the possibility of stack underflow?
Here is a, possibly flawed, approach for using a traversal to print the contents of the linked list of strings accessed through letters. Indicate the description that best matches the code.
LLNode<String> currNode = letters;
while (currNode != null) {
System.out.println(currNode.getInfo());
if (currNode.getLink() != null)
currNode = currNode.getLink();
else
currNode = null;
}
What is the result of evaluating the following postfix expression?
6 4 + * 3 10 +
A. 0 B. 3 C. too many operands D. too few operands
stack implementations throw an exception if a pop is attempted on an empty stack. A valid alternate approach to handling this situation is to:
which of these statements is the best representation of the current status of a Stack ADT in the Java Standard Library?
A. There is no support for stacks in the library. B. The library provides a Stack class.
C. The library does not provide a Stack class, but does provide other classes that can be used for the same functionality.
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