This code performs a text replacement operation on a string...

This code performs a text replacement operation on a string using Java's String.replaceAll() method. Here's what it does:

1. line.replaceAll("Time\\:1[0-9]+ ", "Time:XX "):

   • The method replaceAll() searches the string stored in line for patterns that match the specified regular expression ("Time\\:1[0-9]+ ").
   • When it finds a match, it replaces every matched substring with the specified replacement string ("Time:XX ").

2. Regular Expression Explanation (Time\\:1[0-9]+ ):

   • Time\\:: Matches the exact text "Time:". The colon (:) is escaped with a double backslash (\\) because : is not a special character in regex but must be escaped when used in a Java string.
   • 1[0-9]+: Matches a sequence of digits that starts with 1 and is followed by one or more (+) digits in the range 0-9.
   • The pattern ends with a literal space ( ) after the numbers.

3. Replacement String: "Time:XX ":

   • Any substring matching the pattern is replaced with the fixed text "Time:XX ".

Example Use

If the content of line is:

"Time:123 Some other text Time:145 Another part"

After executing:

line = line.replaceAll("Time\\:1[0-9]+ ", "Time:XX ");

The result will be:

"Time:XX Some other text Time:XX Another part"

Summary

The code replaces any occurrence of "Time:" followed by a 1 and one or more digits (e.g., 10, 123, 145, etc.), and a space, with "Time:XX ".