initializing arraylist in java 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: how to make an arraylist java

ArrayList<Integer> integerArray = new ArrayList<Integer>();
ArrayList<String> stringArray = new ArrayList<String>();
ArrayList<Double> doubleArray = new ArrayList<Double>();
//... keep replacing what is inside the <> with the appropriate
//data type

Example 3: initialize arraylist

ArrayList<Type> list = new ArrayList<Type>(Arrays.asList(
		elem1, elem2,..., elemN
        ));

Example 4: initialiser une arraylist

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