Question

I can search on every column except Number. I cannot search number column. Because I have given the regex as

RowFilter<MyTableModel, Object> rf = null;
//If current expression doesn't parse, don't update.
try {
    rf = RowFilter.regexFilter(filterText.getText(), 0,1,2,3,4);
} catch (java.util.regex.PatternSyntaxException e) {
    return;
}
sorter.setRowFilter(rf);

Can anybody help me to find the correct Regex. The current Regex is not working for ‘+’. If i print the exception it will shows

meta character '+' near index 0 (java.util.regex.PatternSyntaxException)

I can search the current table columns except number using RowFilter.regexFilter(filterText.getText(), 0,1,2,3,4); this regex.

FirstName   LastName     Number

Karthy      Smith        +123
John        Doe          +234
Sue         Black        +545
Jane        White        +895reading

Answer 1

try

rf = RowFilter.regexFilter(Pattern.quote(filterText.getText()), 0,1,2,3,4);

as filter.getText() may (and in your case does) contain regex meta characters or escape sequences, they lose their special meaning using Pattern.quote().