The first application, without learning Java, immediately practice?

Question

Java

I decided to learn Java programming in order to learn how to make applications, but after that How deep should my knowledge of java be to create an android application? decided to do the issue immediately. There is some knowledge thanks to startandroid.ru for which I thank them.
A number of questions arose:
1. How to parse dynamic news sites?
2. Do I need to make a database?
3. Can I use hosting to store a database?

Answer 1

1. If you read Java, then the question would not arise.
in a book you would learn how to make a request to the network, get a response,
how to use regular expressions.
2. It depends on which application.
you can just dump the data into a file
3. You can
Read Shield https://vk.com/doc23917949_270296612?hash=c3916e03...

Answer 2

1 jsoup
2 depends on what you want to do
3 yes, why?