Java regex for a simple pattern

Question

I would like a write a regex in Java to filter strings like this: FROM: User.0@asdd.tst.com.

What I exactly want to filter looks like this:

["FROM" on beginning of the line] 
[undefinied number of white space character] 
[":" colon] 
[undefinied number of white space character] 
[any alphanumeric character plus any point(".") character) "] 
["@" at] 
[any alphanumeric character plus any point(".") character) "] 
["end of line character"]

I've already tried this: ^FROM\\s*:\\s*\\.*@\\.*, but it doesn't work. (I used double slashes because I wanna pass it to a Pattern like string.)

Answer 1

You have forgotten alphanumeric characters:

^FROM\s*:\s*[a-zA-Z0-9.]+@[a-zA-Z0-9.]+