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Chapter 4: Problem 11

If the following pseudocode were an actual program, what would it display? If "z" < "a" Then Display "z is less than a." Else Display "z is not less than a." End If

Short Answer

Expert verified
Answer: The displayed message would be "z is not less than a."

Step by step solution

01

Understand character comparisons

To compare characters, programming languages typically compare their Unicode values. Unicode values are unique integer values assigned to each character. The characters "a" to "z" have Unicode values in the range of 97 to 122, and they are ordered alphabetically, i.e., "a" < "b" < "c" ... < "z". In this case, we are comparing "z" with "a".
02

Determine the outcome of the comparison

Using the alphabetical Unicode ordering, we can determine the outcome of the comparison between "z" and "a". Since "z" comes after "a" in the alphabet and has a higher Unicode value (122) than "a" (97), we can conclude that: "z" > "a" As the condition given in the pseudocode ("z" < "a") doesn't hold true, the program will execute the Else block.
03

Find the output of the pseudocode

As per our analysis, the Else block will be executed since the provided condition is false. So the displayed message would be: "z is not less than a."

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