Examples of using The arraylist in English and their translations into Vietnamese
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Colloquial
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Ecclesiastic
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Computer
For example, the ArrayList.
The ArrayList is not synchronized.
Removes all elements from the ArrayList.
The ArrayList you do not(in general).
Removes a range of elements from the ArrayList.
The ArrayList is not synchronized, not thread safe.
Clear(): Removes all elements from the ArrayList.
The ArrayList and Collection classes are very similar.
Clear(): Removes all elements from the ArrayList.
The ArrayList class extends AbstractList and implements the List interface.
Use clear() to remove all elements from the arraylist.
If the object isn't in the ArrayList, nothing happens.
Adds a specific element at the end of the ArrayList.
The ArrayList is one of the most often used classes in the Java Collections Framework.
Adds an object to the end of the ArrayList.
Actually, probably the"best" way to initialize the ArrayList is the method you wrote, as it does not need to create a new List in any way.
To add a new element to the end of the ArrayList.
Note: The sizes shown for the ArrayList lines are for trimmed lists- In practice, the capacity of the backing array in an ArrayList is generally larger than its current element count.
Adds a specific element at the end of the ArrayList.
I have done a better version of your benchmark here, with results-the append-on-end performance for the arraylist is artificially low for yours, because addAll is giving a storage array of EXACTLY initial size, so the first insert always triggers an arraycopy.
I would like to convert this array into an object of the ArrayList class.
Gets or sets the number of elements that the ArrayList can contain.
Use remove(object) to remove the first occurrence of object from the ArrayList.
Returns a Boolean indicating whether or not the ArrayList has a fixed size.
Sets the capacity to the actual number of elements in the ArrayList.
Returns a Boolean indicating whether or not the ArrayList has a fixed size.
Copies the elements of a collection over a range of elements in the ArrayList.
Inserts the elements of a collection into the ArrayList at the specified index.
Capacity: Stores the number of elements the ArrayList can hold.
To avoid the high cost of resizing when you know you're going to add a lot of elements,construct the ArrayList with a higher initial capacity.