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Java / Collections

How do you initialize an ArrayList?

In three ways,

Using add(Object obj) method,

ArrayList<String> list = new ArrayList<String>();
list.add("Apple");
list.add("Banana");
list.add("Cherry");

Using Double brace initialization, (an anonymous inner class with an instance initializer.

  ArrayList<String> alphabets = new ArrayList<String>() {{
                                  add("Apple");
                                  add("Banana");
                                  add("Chery");
                              }};

Using,

  List<String> fruitList = Arrays.asList("Apple", "Banana", "Cherry");

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List and its implementations

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