any uk cab apps i can use that accept  bitcoin? I want to start using BTC as the main currency for my money, lord knows you cant trust banks in this day and age.

Does my bitcoin i have in my wallet (like 70 bucks) increase / decrease over time depending on bitcoins worth?

So, I run a business, my business currently accepts paypal, its fully automated which is something I need.

Do you know any wallets that have a java sdk or  library I can use in my website (website made in Java EE) to accept bitcoin payments and process them automatically.

(I would like something that does not require me to give them ID)