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# Program to print circle pattern

• Last Updated : 09 Apr, 2021

Given a positive integer n i.e, radius of the circle, print a circle using stars.
Examples :

```Input : n = 3
Output :
***
*   *
*     *
*     *
*     *
*   *
***

Input : n = 6
Output :
*****
**     **
**       **
*         *
*           *
*           *
*           *
*           *
*           *
*         *
**       **
**     **
*****    ```

## CPP

 `// C++ implementation to print circle pattern``#include ``using` `namespace` `std;` `// function to print circle pattern``void` `printPattern(``int` `radius) {` `  ``// dist represents distance to the center``  ``float` `dist;` `  ``// for horizontal movement``  ``for` `(``int` `i = 0; i <= 2 * radius; i++) {` `    ``// for vertical movement``    ``for` `(``int` `j = 0; j <= 2 * radius; j++) {``      ``dist = ``sqrt``((i - radius) * (i - radius) +``                  ``(j - radius) * (j - radius));` `      ``// dist should be in the range (radius - 0.5)``      ``// and (radius + 0.5) to print stars(*)``      ``if` `(dist > radius - 0.5 && dist < radius + 0.5)``        ``cout << ``"*"``;``      ``else``        ``cout << ``" "``;     ``    ``}` `    ``cout << ``"\n"``;``  ``}``}` `// Driver Code``int` `main() {``  ``int` `radius = 6;``  ``printPattern(radius);``  ``return` `0;``}`

## Java

 `// Java implementation to print circle pattern` `class` `GFG {``    ` `// function to print circle pattern``static` `void` `printPattern(``int` `radius) {` `    ``// dist represents distance to the center``    ``double` `dist;` `    ``// for horizontal movement``    ``for` `(``int` `i = ``0``; i <= ``2` `* radius; i++) {` `    ``// for vertical movement``    ``for` `(``int` `j = ``0``; j <= ``2` `* radius; j++) {``        ``dist = Math.sqrt((i - radius) * (i - radius) +``                         ``(j - radius) * (j - radius));` `        ``// dist should be in the range (radius - 0.5)``        ``// and (radius + 0.5) to print stars(*)``        ``if` `(dist > radius - ``0.5` `&& dist < radius + ``0.5``)``        ``System.out.print(``"*"``);``        ``else``        ``System.out.print(``" "``);``    ``}` `    ``System.out.print(``"\n"``);``    ``}``}` `// Driver code``public` `static` `void` `main(String[] args)``{``    ``int` `radius = ``6``;``    ``printPattern(radius);``}``}` `// This code is contributed by Anant Agarwal.`

## Python3

 `# Python implementation``# to print circle pattern` `import` `math` `# function to print circle pattern``def` `printPattern(radius):``    ` `    ``# dist represents distance to the center``    ``# for horizontal movement``    ``for` `i ``in` `range``((``2` `*` `radius)``+``1``):`` ` `        ``# for vertical movement``        ``for` `j ``in` `range``((``2` `*` `radius)``+``1``):``            ` `            ``dist ``=` `math.sqrt((i ``-` `radius) ``*` `(i ``-` `radius) ``+``                  ``(j ``-` `radius) ``*` `(j ``-` `radius))`` ` `            ``# dist should be in the``            ``# range (radius - 0.5)``            ``# and (radius + 0.5) to print stars(*)``            ``if` `(dist > radius ``-` `0.5` `and` `dist < radius ``+` `0.5``):``                ``print``(``"*"``,end``=``"")``            ``else``:``                ``print``(``" "``,end``=``"")     ``    ` ` ` `        ``print``()``  ` `# Driver code` `radius ``=` `6``printPattern(radius)` `# This code is contributed``# by Anant Agarwal.`

## C#

 `// C# implementation to print circle pattern``using` `System;` `class` `GFG {``    ` `    ``// function to print circle pattern``    ``static` `void` `printPattern(``int` `radius) {``    ` `        ``// dist represents distance to the center``        ``double` `dist;``    ` `        ``// for horizontal movement``        ``for` `(``int` `i = 0; i <= 2 * radius; i++) {``    ` `            ``// for vertical movement``            ``for` `(``int` `j = 0; j <= 2 * radius; j++) {``                ``dist = Math.Sqrt((i - radius) *``                        ``(i - radius) + (j - radius)``                                    ``* (j - radius));``        ` `                ``// dist should be in the range``                ``// (radius - 0.5) and (radius + 0.5)``                ``// to print stars(*)``                ``if` `(dist > radius - 0.5 &&``                               ``dist < radius + 0.5)``                    ``Console.Write(``"*"``);``                ``else``                    ``Console.Write(``" "``);``            ``}``        ` `            ``Console.WriteLine(``""``);``        ``}``    ``}``    ` `    ``// Driver code``    ``public` `static` `void` `Main()``    ``{``        ``int` `radius = 6;``        ` `        ``printPattern(radius);``    ``}``}` `// This code is contributed by vt_m.`

## PHP

 ` ``\$radius` `- 0.5 &&``                 ``\$dist` `< ``\$radius` `+ 0.5)``                ``echo` `"*"``;``                ` `            ``else``                ``echo` `" "``;``        ``}``        ``echo` `"\n"``;``    ``}``}` `// Driver Code``\$radius` `= 6;``printPattern(``\$radius``);` `// This code is contributed by Mithun Kumar``?>`

## Javascript

 ``
Output :
```    *****
**     **
**       **
*         *
*           *
*           *
*           *
*           *
*           *
*         *
**       **
**     **
*****  ```

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