计算支付宝借呗的年化收益

package test;

public class test {

public static final double K = 4.1;// 宏

public static void main(String[] args) {

System.out.println(“The programme begin running!”);

System.out.println(“常量K：” + test.K);

double a[] = { 949.33, 947.00, 936.66, 920.33, 916.00, 903.33, 895.33,

883.33, 874.66, 864.33, 853.33, 843.70 };

System.out.println(“数组长度：” + a.length);

for (int i = 0; i < 12; i++) {

a[i] = a[i] / 10000 * K * (11 - i) * 30;// 计算万份收益*对应天数

System.out.printf(“a[%d]=%f\n”, i, a[i]);

}

double sum = 0;

for (int i = 0; i < 12; i++) {

sum = sum + a[i];

System.out.printf(“sum[%d]=%f\n”, i, sum);

}

System.out.println(“这12个数字之和：” + sum);

System.out.println(787.33 + sum);

System.out.println((787.33 + sum) / 100 + “%”);

}

}