用while语句计算e≈1+1/1！+1/2！+…+1/n！

以下是使用while语句计算e≈1+1/1！+1/2！+…+1/n！的代码：

public class Main {
    public static void main(String[] args) {
        int n = 10;
        double e = 1.0;
        int i = 1;
        int factorial = 1;
        while (i <= n) {
            factorial *= i;
            e += 1.0 / factorial;
            i++;
        }
        System.out.println("e ≈ " + e);
    }
}