Java-簡單的求三個數系列（可作參考）

package my_Demo; import java.util.Scanner; public class HomeWorkQiu { public static void main(String[] args) { System.out.println("請輸入球體從多少米落下以及求第幾次反彈之後的高度："); Scanner sc = new Scanner(System.in); double height = sc.nextDouble(); int Num = sc.nextInt(); System.out.println("第" + Num + "次落下的高度：" + down(height, Num) + "米"); System.out.println("第" + Num + "次落下共經歷的高度：" + sumHeight(height, Num) + "米"); sc.close(); } public static double down(double M, int num) { for (int i = 1; i <= num; i++) { M = M / 2; } return M; } public static double sumHeight(double M, int num) { double Sum = M; for (int i = 1; i <= num; i++) { M = M / 2; Sum += 2 * M; } return Sum; } }