How to write regex for . capital letters in java

How to write regex for . capital letters in java

Hi I have some text in my text file, now i want to split the content into
statements based on full stops. i tried with string.replaceAll(".") but it
is splitting the strings like www.soft.com, http.www. etc
so I need a regex with dot then space then capital letter( eg . All , . Many)
so that i can get like this
Welcome to john.
John is working in London.
James is from Paris.
This is my sample program and it is developed in java.
It is working fine.
Foe My sample text
Welcome to john. John is working in London. James is from Paris.
This is my sample program
and it is developed in java. It is working fine.