> For the complete documentation index, see [llms.txt](https://university-west.gitbook.io/programming-paradigms/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://university-west.gitbook.io/programming-paradigms/programming-fundamentals/control-structures/iteration-loops/do-while-loops.md).

# Do-While loops

#### Do-While Loop Statement in Computer Programming

The do-while loop is a control flow statement that executes a block of code at least once, and then repeatedly executes the block, or not, depending on a given Boolean condition at the end of each iteration. Unlike the `while` loop, which tests the loop condition before the block of code runs, the `do-while` loop checks its condition after the code has executed. This ensures that the block of code inside the loop executes at least one time.

**Syntax:**

```c
do {
    // Code block to be executed
} while (condition);
```

**Example in C#:**

```csharp
using System;

class Program {
    static void Main() {
        int counter = 0;
        do {
            Console.WriteLine(counter);
            counter++;
        } while (counter < 5);
    }
}
```

**Note:** Python does not have a built-in `do-while` loop construct. Instead, a similar effect can be achieved using a while loop. Here is an equivalent approach in Python:

**Example in Python:**

```python
counter = 0
while True:
    print(counter)
    counter += 1
    if counter >= 5:
        break
```


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