Select an Appropriate Expression to Complete the Method Below, Which

question 22

Multiple Choice

Select an appropriate expression to complete the method below, which is designed to print the element at the bottom of a Stack collection. The contents of the original stack are restored before the method terminates. It is safe to assume that the original stack contains at least one element. public static void printBottom(Stack<String> theStack)
{
Stack<String> anotherStack = new Stack<String>() ;
While (theStack.size() > 0)
{
AnotherStack.push(theStack.pop() ) ;
}
____________________________
While (anotherStack.size() > 0)
{
TheStack.push(anotherStack.pop() ) ;
}
}

• A) System.out.println(theStack.pop());
• B) System.out.println(theStack.peek());
• C) System.out.println(anotherStack.peek());
• D) System.out.println(anotherStack.pop());

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Definitions:

DEPT-90

A nuclear magnetic resonance (NMR) technique that distinguishes between CH and CH3 groups in a molecule.

DEPT-135

An NMR spectroscopy technique that distinguishes between carbon atoms attached to hydrogen atoms, depending on the number of hydrogen atoms (CH, CH2, or CH3).

Quaternary

Referring to carbon atoms bonded to four different groups, especially relevant in organic chemistry when discussing carbon structure and stereochemistry.

Bootstrap Distribution

A distribution obtained by repeatedly sampling, with replacement, from a sample dataset to estimate the shape of the population distribution.