Program to find Length of String without using Length Function

References

https://www.tutorialspoint.com/Java-string-length-without-using-length-method

https://java2blog.com/find-length-of-string-without-using/

http://javahungry.blogspot.com/2013/06/find-length-of-string-calculate-without-using-built-in-functions-code-program.html