HomeworkLib
Question

Assume that a method called checkStr has been written to determine whether a string is the same forward and backward. The following two sets of data are being considered to test method checkStr:

Data Set 1

Data Set 2

"aba"

"abba"

"?"

"abab"

"z&*&z"

"##"

Which of the following is an advantage of data set 2 over set 1?

All strings in data set 2 have the same number of characters

Data set 2 contains a string for which method checkStr should return false, as well as string for which method checkStr should return true

The strings in data set 2 contain only lowercase letters.

Data set 2 contains fewer values than data set 1.

Data set 2 has no advantage over data set 1.

Assume that a method called checkStr has been written to determine whether a string is the same forward and backward. The fol

C++ ONLY.

engineering   Computer-Science   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Ans: Data set 2 contains a string for which method checkStr should return false as well as string for which method checkStr should return true.

====================================

CheckStr function checks the string to be both same from backward and forward, and all the strings present in Data set 1 are same from both forward and backward. Therefore while testing we get only True values and wont be sure if it is applicable for False values. But in Data set 2, two values are present out of which one is True and the other is False hence Data set 2 is the most appropiate for testing the function.

0 0
Add a comment
Know the answer?
Add Answer to:
Assume that a method called checkStr has been written to determine whether a string is the...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A palindrome is a word or phrase that reads the same forward and backward, ignoring blanks...

    A palindrome is a word or phrase that reads the same forward and backward, ignoring blanks and considering uppercase and lowercase versions of the same letter to be equal. For example, the following are palindromes: • warts n straw • radar • Able was I ere I saw Elba • tacocat Write a program that will accept a sequence of characters terminated by a period and will decide whether the string—without the period—is a palindrome. You may assume that the...

  • c++ Write a function Count_m_z that takes a string as an input parameter argument and counts...

    c++ Write a function Count_m_z that takes a string as an input parameter argument and counts the number of m, n, o, ... z characters in it. The function returns an integer value for the number of times those 14 lowercase letters appear in the input string. Your function should be named Count_m_z Your function should take one string parameter Your function should return the number of m, n, o, ... z characters as an integer Your function should not...

  • package week_3; /** Write a method called countUppercase that takes a String array argument. You can...

    package week_3; /** Write a method called countUppercase that takes a String array argument. You can assume that every element in the array is a one-letter String, for example String[] test = { "a", "B", "c", "D", "e"}; This method will count the number of uppercase letters from the set A through Z in the array, and return that number. So for the example array above, your method will return 2. You will need to use some Java library methods....

  • Problem Statement In genetics, most large animals have two copies of every gene, one from each...

    Problem Statement In genetics, most large animals have two copies of every gene, one from each parent. In the simplest genetic model, each of the genes takes on one of two forms, usually represented by an uppercase and lowercase letter of the same value ('A' and 'a', for example). The pair of genes typically contributes to the external qualities of the animal in one of two ways. If both genes are uppercase, they contribute in one way, while if both...

  • Write a method called printReverse() that takes a string and uses recursion to print the contents...

    Write a method called printReverse() that takes a string and uses recursion to print the contents of the string in reverse order. The string itself should not be reversed; it must be left in its original form. The method has the following header:   void printReverse(String s, int i) where s is a reference to the string, and i is an integer parameter that you may use as you see fit. You do not need to code up this method as...

  • For Python [25 pts] Write the method divisorList(aList, divisor) that takes in a list with elements...

    For Python [25 pts] Write the method divisorList(aList, divisor) that takes in a list with elements of any data type and a divisor which is in the form of an integer. The output is a sorted list of only the integers that are divisible by the divisor. Example: divisorList([1, 1, 12, 'a', 90, 34], 2) will return [12, 34, 90] since 12, 90, and 34 are all divisible by two. Note that the returned list is sorted from smallest to...

  • Run-length encoding (RLE) is a simple "compression algorithm" (an algorithm which takes a block of data...

    Run-length encoding (RLE) is a simple "compression algorithm" (an algorithm which takes a block of data and reduces its size, producing a block that contains the same information in less space). It works by replacing repetitive sequences of identical data items with short "tokens" that represent entire sequences. Applying RLE to a string involves finding sequences in the string where the same character repeats. Each such sequence should be replaced by a "token" consisting of: the number of characters in...

  • Hey all, if you could create a java program following these guidelines that would be much...

    Hey all, if you could create a java program following these guidelines that would be much appreciated. helpful comments in the program would be appreciated :) The idea of this program is as followes : A password must meet special requirements, for instance , it has to be of specific length, contains at least 2 capital letters , 2 lowercase letters, 2 symbols and 2 digits. A customer is hiring you to create a class that can be utilized for...

  • JAVA PROBLEM! PLEASE DO IT ASAP!! REALLY URGENT! PLEASE DO NOT POST INCOMPLETE OR INCORRECT CODE...

    JAVA PROBLEM! PLEASE DO IT ASAP!! REALLY URGENT! PLEASE DO NOT POST INCOMPLETE OR INCORRECT CODE Below is the program -- fill the code as per the instructions commented: //---------------------------------------------------------------------------------------------------------------------------------------------------------------// /* The idea of this HW is as follows : A password must meet special requirements, for instance , it has to be of specific length, contains at least 2 capital letters , 2 lowercase letters, 2 symbols and 2 digits. A customer is hiring you to create a class...

  • Construct context-free grammars that generate the given set of strings. If the grammar has more than one variable, we wi...

    Construct context-free grammars that generate the given set of strings. If the grammar has more than one variable, we will ask to write a sentence describing what sets of strings expect each variable in the grammar to generate. For example, if the grammar was: I could say "C generates binary strings of length one, E generates (non-empty) even length binary strings, and O generates odd length binary strings." It is also fine to use a regular expression, rather than English,...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT