The comparison of arraylist and list
in the c#: When will choose generics?
In the field of data structure, the difference between ArrayList and List in C# stems from generic introduction. The generic style completely changes the C#, providing a method of creating a type of safety collection, which can store elements of specific types.
Main differences: arraylist and list
The main difference between ArrayList and List is their type. ArrayList is a non -type collection and storage object; List is a type of type of collection, storing specific types of elements, which is represented by generic parameter T.
List Compared to ArrayList's advantages
List The type of type of type provides several advantages compared to ArrayList:
Type Security:
List
Forced execution type security to prevent you from storing different types of objects in the same episode. This eliminates the need for explicit conversion and reduces the risk of errors.
Performance:
List - Avoid the expenses of boxing and boxing, because it directly stores elements instead of object reference.
LINQ support: List
seamlessly integrated with Language Integration (Linq), which is convenient for complex query and conversion of sets. -
Arraylist's abandonment
- With the introduction of generics, ARRAYLIST is out of date. ArrayList is not safe, has performance defects, and does not support linq. It is strongly recommended to use List instead of ArrayList in new applications.
Conclusion
In today's C# programming environment, List is superior to ArrayList. Its types of security, performance advantages, and LinQ support make it the first choice collection type of storage and operation data.
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