Grabbing random object from ArrayList is not random.
- by Isai
I am creating a method where if you pass in a parameter of type Random, then it will return a random object. Here is basically what I am trying to do:
public T choose(Random r) {
int randomInt = r.nextInt(randomList.size()); // randomList is just a instance variable
return randomList.get(randomInt);
}
The random list has this the following strings:[2, 2, 2, 1, 1, 1, 1, c, c, c, a, a, a, a]
Then I made a driver with the following code
for (int i = 0; i < 10; i++) {
System.out.print(rndList.choose(rnd)); // rnd is initialized as a static Random variable
}
However my outputs are not coming out random. I used the debugger and found out that my choose method generates an integer that is relatively low, so it will always print out either 2's or 1's but never c's or a's. I can't figure out why this is happening and help would be greatly appreciated.
