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  scu09156146  commented on May 14, 2024, 11:31 a.m.

  題解

  import java.util.ArrayList;
  import java.util.Scanner;
  
  public class ArrayListPractice {
  
      public static void main(String[] args) {
          // TODO Auto-generated method stub
          ArrayList<Integer> nums = new ArrayList<>();
          Scanner input = new Scanner(System.in);
  
          int n, sum = 0;
          while (input.hasNextInt()) {    // 檢查後面是不是數字
              n = input.nextInt();
              nums.add(n);                // .add()新增到ArrayList裡
              sum += n;                   // 同時做累加
          }
          input.close();
  
          System.out.print(sum + " " + nums.size());
  
      }
  
  }