Java：使用 BufferReader 添加 2 个数字，不适用于 CS Academy

Question

I'm trying to add 2 integers together and print out the result, for a task on CS Academy . I'm using a BufferReader to read the integer results and an enhanced-for loop to put the values into A & B; however, it just provides a blank result. How do I fix the enhanced-for loop and the reader? https://csacademy.com/contest/archive/task/addition/

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task: You are given two integer values A and B, compute and output their sum.

Standard input The first line contains the two integers A and B.

Standard output Output a single number representing the sum of A and B.

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  import java.util.*;
  import java.lang.*;
  import java.io.*;

  class Main {
        public static void main (String[] args) throws java.lang.Exception {
          int A, B;
          A =0; B =0;

       BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Enter Integer:");
            int i = Integer.parseInt(br.readLine());

        int[] values = new int[i];
            for(int value: values ) {
            A=value[0];
            B=value[1];
            }
        System.out.println(A + B );

        }
    }

Answer 1

Your program doesn't work because first of all you are reading only one number instead of two. Secondly, you are adding two numbers which are initialized to 0 but which never get any other values. You expect user to enter two numbers separated by a space. Therefore, you need to split the input string ("10 15") with a space and then treat each individual one string as a number and then sum it up.

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter Integer:");
String[] str = br.readLine().split(" ", 2);
System.out.println("Sum is " + (Integer.parseInt(str[0]) + Integer.parseInt(str[1])));
br.close();