JAVA第二周 输入字符

2.6**

代码如下

package Digits;import java.util.Scanner;public class Digits {public static void main(String[] args) {System.out.println("Enter an integer between 0 and 1000 :");Scanner in = new Scanner(System.in);int a = 0, b = 0, c = 0;int num = in.nextInt();if (num < 1000 && num >= 0) {a = num % 10;b = (num % 100 - a) / 10;c = num / 100;System.out.println(a + b + c);} else {System.out.println("Sorry,the integer must be between 0 and 1000.");}}}

运行结果

Enter an integer between 0 and 1000 :93214

2.24

代码如下

package Digits;import java.util.Scanner;public class RunwayLength {public static void main(String[] args) {Scanner in = new Scanner(System.in);System.out.println("Enter v in meters/second(m/s) :");double v = in.nextDouble();System.out.println("Enter a in meters/second squared(m/s^2) :");double a = in.nextDouble();System.out.println("The minimum runway length for this airplane is "+0.5*v*v/a);}}

运行结果

Enter v in meters/second(m/s) :60Enter a in meters/second squared(m/s^2) :3.5The minimum runway length for this airplane is 514.2857142857143