How do you match multiple Regex patterns for a single line of text in Java?

Question

Lets say I have multiple patterns P1, P2, P3,, and so on. These patterns are different Regex patterns to match different variations of DATE.

How do I match these for

Answer 1

I think you can use the | operator of the regex and put the different regexes in paranthesis to be considered one whole regex to be matched.

("(P1)|(P2)|(P3)")