C# Arrays

C# Arrays

In C#, an array is used to store multiple values of the same data type in a single variable. Arrays are fixed in size once created.

 Declaring an Array

 Initializing an Array

or

 Access Array Elements

Array index starts from 0.

 Change Array Elements

 Array Length

 Loop Through an Array

✔ Using for Loop

✔ Using foreach Loop

 Array of Strings

 Multidimensional Arrays

2D Array Example

Loop 2D Array

 Jagged Arrays (Array of Arrays)

 Array Methods

 Common Errors

❌ Index out of range
❌ Accessing uninitialized elements

 Summary

✔ Arrays store multiple values
✔ Index starts at 0
✔ Fixed size
✔ Supports loops
✔ Can be multi-dimensional