Data Structures

C# Arrays

Working with Arrays

C# arrays are fixed-length typed collections with indexing.

Introduction to C# Arrays

C# arrays are a fundamental data structure used to store a fixed-size sequence of elements of the same type. They are indexed collections, meaning each element can be accessed by its index, starting from zero. Arrays are useful for storing data in a structured format and are an essential part of C# programming.

Declaring and Initializing Arrays

To declare an array in C#, you specify the type of elements it will hold followed by square brackets. You can also initialize an array at the time of declaration.

Accessing Array Elements

Array elements are accessed using their index, which is zero-based. You can use the index to retrieve or modify values in the array.

Iterating Over Arrays

You can iterate over arrays using loops in C#. The for loop and foreach loop are commonly used to traverse arrays.

Multidimensional Arrays

C# supports multidimensional arrays, which can be either rectangular or jagged. Rectangular arrays have rows and columns of the same length, while jagged arrays are arrays of arrays.

Limitations of C# Arrays

While arrays are powerful, they have limitations. Arrays are fixed in size, meaning you cannot change the size once defined. They are also less flexible compared to other data structures like lists, which will be covered in the next post.

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