Programming Logic and Design

Question

1. When using subscript notation to specify a character position in a string,

what are the subscripts of the first and last characters?

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2. Design an algorithm that determines whether the first character in the

String variable str is a numeric digit, and if it is, deletes that character.

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3. Assume the following declaration appears in a program:

Declare String city = "Boston"

Write a statement that deletes the first three characters in the str variable.

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4. If the following pseudocode were an actual program, what would it display?

Declare String str = "Yada yada yada"

delete(str, 4, 9)

Display str

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5. Assume the following declaration appears in a program: Declare String

name = "Joy"

What would the following statement display?

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6. If the following pseudocode were an actual program, what would it display?

Declare String greeting = "Happy" insert(greeting, 0, "Birthday") Display

greeting

Answer 1

1) For string with length N and ZERO BASED indexing,

the first character is at index position ZER0 and

the last character is at index position N-1

2) if (isDigit(str[0]))

{

str.delete(0);

}

3) String city = "Boston";

String strCity = city.delete(0,3);

4) "Yadayada"

5) ? no statement given

6) BirthdayHappy