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 void main(String[] args) {
		double pi=0;
		for(int i=10000;i<=100000;i++) {
			if(i%2==0) {
				pi=pi+(1/(2*i-1))-(1/(2*i+1));
			}
			if(i%2!=0) {
				pi=pi-(1/(2*i-1))+(1/(2*i+1));
			}
		}
		pi=pi*4;
		System.out.println("pi is :"+pi);
	}