Explain how you would design a method, returning boolean, that determines if a string passed as a parameter satisfies this recursive definition.

< S > = < W > < W >
< W > = a | b | a < W > | b < W >


We are basically looking to see if the string is the same substring repeated twice, such as “abcdabcd”. First, return false if the string length is less than 2 or odd. Next, find the midpoint of the string, and create two substrings, s1 and s2. Then, check to see if s1 matches s2.

Computer Science & Information Technology

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a. void b. terminal c. value-returning d. private

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In Word's order of operations, which of the following is the first step in evaluating an expression?

A) Performing multiplication B) Evaluating parenthetical information C) Performing division D) Performing subtraction

Computer Science & Information Technology

In a source document, the _____ contains codes, identification information, numbers, and dates that are used for storing completed forms.

A. control zone B. heading zone C. totals zone D. authorization zone

Computer Science & Information Technology

When a "404 error" appears after entering a Web site address, it is probably due to one of the following reasons EXCEPT: _____.

A. you are blocked from the page B. an old index is still maintained in a search engine C. the page was moved D. a typing error was made when entering the URL

Computer Science & Information Technology