regex pattern for only number & dot & comma in java

regex pattern for only number & dot & comma in java

actually read all of the links regarding the pattern in java for using a
numbers including dot & comma but none of them works for me !!i want to
have some thing like this 1111111.2222222.
the number of digits is not important but i wanna use dot or comma in
between anywhere i would like . i already tried this
"^[0-9-\\+]([,.][0-9])?$"; but not works. & i visited the link below as
well Regex only numbers and dot or comma