Pi array
in java
return an int[] that returns n many digets of pi. eg: makepi(3) -> [3, 1, 4] makepi(6) -> [3, 1 ,4, 1, 5, 9]

please find below explanation

Explanation:

public class PITest {

      // Define makePI method

public static int[] makePi(int n){

 /*

  * In PI value we have original value 3.141592653589793, so if we convert this

  * into an string there will be 17 character in the string an indexing will be

  * 0 to 16, so valid index are 0 to 16, we are checking here if a user pass index

  * less then 0 or greater the 16 that will be an invalid index

  * and we should process that index, and should return from the method

  */

 if(n < 0 || n>16){

 System.out.println("Inavlid index, Index must be between 0 to 16 ");

 return null;

 }

 //decrare an array of size of the passed number i.e. n

 int array[] = new int[n];

 //get the value of PI from Math class

 double pi = Math.PI;

 //convert value of PI into an string and replace dot(.) from the string

 String piString =String.valueOf(pi).replace(".","");

 /*

  * Iterate over the piString and get individual character from the string

  * starting from zero and convert that character into int and keep(push) the converted value into the array

  */

 for (int i = 0; i <piString.length(); i++) {

 array[i]= Character.getNumericValue(piString.charAt(i));

 }

 // return the array

 return array;

}

public static void main(String[] args) {

 // to test makePI method call that method by passing an int value this method will return an array of integer

 int arr[]=  makePi(16);

 // check if arr is not null

 if(arr!=null){

 // iterate over the array and print the values

 for (int i = 0; i < arr.length; i++) {

   System.out.print(arr[i]+" ");

 }

 }

}

}

public static int[] MakePie(int n){

       double pi = Math.PI;

       int[] digits = new int[n];

       for (int i = 0; i < n; i++) {

           digits[i] = (int) Math.floor(pi);

           pi -= digits[i];

           pi *= 10;

       }

       return digits;

   }

Explanation:

- Create a method called MakePie that takes the number of digits to be returned as a parameter

- Initialize the pi using Math class

- Initialize a new array digits that will hold the digits returned

- Inside the for loop, get the digits of the pi, starting from the beginning, and put the these into the digits array

- Return the digits array

answerpanning and scanning;