List<Integer> myList = new ArrayList<>();
for(int i = 0; i < 10; i++){
myList.add(i);
}
//gets highest number in the list
int highestNumber = Collections.max(myList);
System.out.Println(highestNumber);
//output: 9
int max = (The provided List).stream().max((i1,i2)->(i1>i2)?1:(i1<i2)-1:0).get();