如何用java写ACM的a+b

Posted 2023-03-20

Main.java:4: error: Type 'Scanner' not found in the declaration of the local variable 'x'.
Scanner x=new Scanner(System.in);
^
1 error
老是compile error

参考技术A import java.util.*; //编译错误估计你没导包
public class Main

public static void main(String[] args)

Scanner cin = new Scanner(System.in);
while(cin.hasNext())
int a = cin.nextInt(); //这里我用int acm 估计要用double
int b = cin.nextInt();
System.out.println(a+b);
//System.out.printf("%d\n",a+b); 也可以用c的printf进行输出


本回答被提问者采纳 参考技术B 你没有导入Scanner包import java.util.Scanner;