Provide a regular expression which will match any string that contains zero or m

Question

Provide a regular expression which will match any string that contains zero or more a's followed by one or more b's 6. 7. The regular expression a "bec will match all of the following strings except for b. abc e It will match all of the above 8. Which of the following best describes the regular expression a. Any single character b. Any single character followed by an asterisk c Any single character repeated any number of times Any single character repeated at least one time Any list of characters as long as there is at least one character d. e. e regular expression.. will only match any single character that appears three times 10, which of the following strings does not match the regular expression ^ a*b*c"? c. abcddd d. The empty string e. All of these match 11. Which of the following best explains the regular expression [0-91- a. A string containing only digits b. A string containing exactly one digit c. A string containing at least one digit d. A string starting with one digit e. A string starting with one digit followed by any non-digit characters

Explanation / Answer

6)

answer:

a*b+

zero or more a's followed by one or more b's

7)

answer: d

because the string contain's at least one b

8)

answer: e

+ represents at least one time..

. means any character

9)

answer: false

10)

answer: c

because it contains d which is not in regular expression

11)

answer:a

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