When reading data from a text file, it is common to see numbers such as 12,345, $20, or 195*. Write a method that cleans a string containing digits by removing any characters that are not a digit or a - sign. Then convert to an integer and return the result.

Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.

Consider the folloeing website url: what does the "http: //" represent? a. protocal identifier. b. ftp. c. domain name d. resource name

In the insert table dialog box, you select the checkbox to create the first row as the header of the table.