Question

here’s my code:

String t1="postby <span title=\"2011-4-5 17:22\">yesterday&nbsp;17:22</span>";
String t2="postby 2010-11-12 10:02";

I want get 2011-4-5 17:22 , 2010-11-12 10:02 from t1 or t2,using one regex expression

(input t1 or t2,output the date)

how to do? (please give to me some example code,thanks)

Answer 1

\d{4}-\d{1,2}-\d{1,2} \d{2}:\d{2}

A few notes:

• you will have to escape the slashes in a string: String pattern = "\\d{4}-\\d{1,2}....."
• \d means “digit” (0-9)
• {x} means “x times”
• {x,y} means “at least x, but not more than y times”

Reference: java.util.regex.Pattern