ArrayList() constructor is used to initialize a new instance of the ArrayList class which will be empty and will have the default initial capacity. ArrayList represents an ordered collection of an object that can be indexed individually. It is basically an alternative to an array. It also allows dynamic memory allocation, adding, searching and sorting items in the list.
public ArrayList ();
- The number of elements that an ArrayList can hold is known as the Capacity of the ArrayList. If the elements will be added to the ArrayList then capacity will be automatically increased by reallocating the internal array.
- Specifying the initial capacity will eliminate the requirement to perform a number of resizing operations while adding elements to the ArrayList if the size of the collection can be estimated.
- This constructor is an O(1) operation.
Before Add Method: 0 After Add Method: 4
- How to create a shallow copy of ArrayList in C#
- C# | Remove the first occurrence of a specific object from the ArrayList
- C# | Get the number of elements actually contained in the ArrayList
- C# | Check whether an element is contained in the ArrayList
- C# | Check if the ArrayList is read-only
- C# | Insert an element into the ArrayList at the specified index
- C# | Add an object to the end of the ArrayList
- C# | Copying the elements of ArrayList to a new array
- C# | Get or set the number of elements that the ArrayList can contain
- C# | Remove a range of elements from the ArrayList
- C# | Check if the ArrayList has a fixed size
- C# | Remove all elements from the ArrayList
- C# | Remove the element at the specified index of the ArrayList
- C# | Reverse the order of the elements in the entire ArrayList or in the specified range
- C# | ArrayList Class
- C# | ArrayList whose elements are copies of the specified value
- C# | Copy the elements of collection over a range of elements in ArrayList
- C# | Sort the elements in the ArrayList
- C# | Sets the capacity to the actual number of elements in the ArrayList
- C# | Adding elements to the end of the ArrayList
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