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 class Pi {
    public static void main(String[] args) {
        int iterations = 100000;
        double pi = 0;
        for (int i = 0; i <= iterations; i++) {
            if (i % 2 == 0) {
                pi = pi + (1 / (2.0 * i + 1.0));
            } else {
                pi = pi - (1 / (2.0 * i + 1.0));
            }
        }
        pi = pi * 4;
        System.out.println("The value of pi is " + pi);
    }
}