Contain Java

 public boolean contains(int value)
    {
        int index = indexOf(value);
        if (index != -1)
        {
            return true;
        }
        return false;
    }

Contain Java

private void checkResize()
    {
        int length = elementData.length;
        if (size == length)
        {
            elementData = Arrays.copyOf(elementData, 2*size);
        }
    }

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