How to retrieve String's and write them to a file or resource and overrwrite and reuse it?
<p>I am retrieving about 7 URL's from a service. I want to be able to write these URL's some where and have my application read from them in another activity. </p>

<p>The thing that makes this tricky is the URL's change every week. So i would need to overwrite the current URL's. I don't want to make the url's stack up on top of each other where they never overrite and by the end of a month there are 24 unused URL's. </p>

<p>What and how is the best way to do this?</p>
