how to initialize arraylist with items code example

Example 1: {} when initialising arraylist java

ArrayList<Type> obj = new ArrayList<Type>(
        Arrays.asList(Object o1, Object o2, Object o3, ....so on));

Example 2: initialiser une arraylist

ArrayList couleurs = new ArrayList() {{
 add(Rouge);
 add(Bleu);
 add(Vert);
}};