Write a program to calculate the result of the formula pi in java 𝜋=4(1−1/3+1/5−1/7+1/9−1/11+1/13−⋯−1/2𝑖−1+1/2𝑖+1) with 10000 ≤ i ≤ 100000

public static float pi(int n){
  float pi;
  float t = 0f;
  for (int i = 1; i <= n; i++){
    t += Math.pow(-1, i-1)/(2*i-1);
  }
  pi = 4 * t;
  return pi;
}

public static void main(String[] args) {
  System.out.println("pi(10000) = " + pi(10000));
  System.out.println("pi(100000) = " + pi(100000));
}