输入1.0+1.0之后出现错误

Question

package lu;
import java.util.Scanner;

public class kkk {

   public static void main(String[] args){


  Scanner sc= new Scanner (System.in );

  double s1=sc.nextDouble();

	  String s=sc.nextLine(); 
	  char op=s.charAt(0); 

  double s2=sc.nextDouble();
  
 if(op=='/') {
	 if(Math.abs(s2)<1e-10) {
		 System.out.print("Wrong input!");
	 }
	 System.out.printf("%.2f",s1/s2);
 }
 else if(op=='*') {
	 System.out.printf("%.2f",s1*s2);
 }
 else if(op=='+') {
	 System.out.printf("%.2f",s1+s2);
 }
 else if(op=='-') {
	 System.out.printf("%.2f",s1-s2);
 }
 else {
	 System.out.print("Wrong input!");
 }
   } 

}

输入1.0+1.0之后出现以下错误：

Exception in thread "main" java.util.InputMismatchException
    at java.util.Scanner.throwFor(Scanner.java:864)
    at java.util.Scanner.next(Scanner.java:1485)
    at java.util.Scanner.nextDouble(Scanner.java:2413)
    at lu.kkk.main(kkk.java:11)
 

Answer 1

题主补充下你的需求是啥吧。sc.nextXXX 使用肯定不对，但不知道你要干啥