java - Getting links out of a string and putting them in an arraylist -

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so, wanna make java program alerts me when there's new thread on subreddit. i'm new, let's this.

i managed put enitre html in 1 string, want index links in string , put them in arraylist.

then i'll create method checks if link in arraylist, , if it's not, there's new thread.

so let's i've got string; webpage. how href="*" out of string, , arraylist?


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