CSC1120 - ArrayLists

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.title[
      # ArrayList
    ]

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    # Wrapping an Array in a Class

* Give behaviors to an array
    --

* Simplify managing lists of data
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* The `ArrayList` implements the methods in the `List` inteface
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* The `List` interface adds index-based methods to the `Collection` inteface

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    # Implements `List`

* `size()`/`isEmpty()`/`clear()`
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* `add(E)`/`remove(Object)`/`contains(Object)`
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* `get(int)`/`set(int, E)`
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* `add(int, E)`/`remove(int)`/`indexOf(Object)`
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* `toArray()`

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# ArrayList Internals
    ```
    List<String> list = new ArrayList<>();
    list.add("dog");
    list.add(null);
    list.add("pig");
    list.add("cat");
    list.add("cow");
    list.add(null);
    ```