List<Integer> list = new ArrayList<Integer>();
list.add(100);
list.add(50);
list.add(500);
System.out.println(Collections.max(list));
System.out.println(Collections.min(list));
List<Integer> list = new ArrayList<Integer>();
list.add(100);
list.add(50);
list.add(500);
System.out.println(Collections.max(list));
System.out.println(Collections.min(list));