regex - How to get the string after last comma in java?

Question

How do I get the content after the last comma in a string using a regular expression?

Example:

abcd,fg;ijkl, cas

The output should be cas

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Note: There is a space between last comma and 'c' character which also needs to be removed. Also the pattern contains only one space after last comma.

Answer 1

Using regular expressions:

Pattern p = Pattern.compile(".*,\s*(.*)");
Matcher m = p.matcher("abcd,fg;ijkl, cas");

if (m.find())
    System.out.println(m.group(1));

Outputs:

cas

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Or you can use simple String methods:

1. System.out.println(s.substring(s.lastIndexOf(",") + 1).trim());
2. System.out.println(s.substring(s.lastIndexOf(", ") + 2));