a) Define pattern matching techniques
b) Define subpatterns within the complete pattern
c) Define portion of strings in the regular expression
d) matching the complete string
Answer: b
Explanation: When a regular expression is successfully matched against a target string, it is possible to extract the portions of the target string that matched any particular paranthesized subpattern. The essential purpose of parantheses in regular expressions is to define subpatterns within the complete pattern.
Related Posts
What are the portability concerns founded in Seeheim model?
Which of the following is the main task accomplished by the user?
Which among the following are the functions that any system with a user interface must provide?
The _____________ system is widely used for mapping from Java objects to relations.
The ______________ layer, which provides the interface between the business-logic layer and the underlying database.
The _____________ layer, which provides a high-level view of data and actions on data.
Which layer deals which deals with user interaction is called _____________ layer.
Join The Discussion