關於java問題-新手求教大神:用java實現

新手求教大神:用java實現

輸入多對空格分開的兩個數a,b,輸出a+b的和，每一對數據的和占一行

最佳回答：

我的應該符合了

 import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;



public class Test {
    public static void main(String[] args) throws IOException {

        Scanner scanner = new Scanner(System.in);
        System.out.println("請輸入數字,空格鍵分開:");
        String stringNumbers = scanner.nextLine();  
        //String num[] = stringNumbers.split("  ");
        int index = 0;
        for(index = 0; index < stringNumbers.length(); index++){
            if(stringNumbers.charAt(index) == ' ')
                break;
        }       
        int result= 0;
        int num1 = stoi(stringNumbers.substring(0, index));
        int num2 = stoi(stringNumbers.substring(index + 1, stringNumbers.length()));
        String s = String.format("數字和為:%d", num1 + num2);
        System.out.println(s);
    }

    public static int stoi(String s){
        int res = 0;
        for(int i = 0; i < s.length(); i++)
            res = res * 10 + s.charAt(i) - '0';
        return res;
    }
}