I'll give you a c++ equivalent :

for(i=0;i<100;i++){
array100[i]= array1000[random(1000)];
}

All you need now is to find an equivalent random function in java ;)

Let's say you retrieved some books' name/title from the database and you want to print their name/title on the page, and still be a link.
You'll have to write something like this:

<a...