[编程基础]输入输出练习之浮点数专题-题解

解题思路:按照题目所给的提示

参考代码:

public class Main {
   public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       double a = scanner.nextDouble();
       System.out.printf("%7f\n",a);
       System.out.printf("%.5f\n",a);
       System.out.printf("%e\n",a);
       System.out.printf("%g\n",a);

   }
}