题解 | #坐标移动#

解析格式，分别移动。注意字符和数字的转换

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static int[] result = new int[] {0, 0};
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextLine()) { // 注意 while 处理多个 case
            String[] input = in.nextLine().split(";");
            for(String tempStr : input) {
                function(tempStr);
            }
            System.out.println(result[0] + "," + result[1]);
        }
    }
    public static void function(String str) {
        if (str.length() < 2 || str.length() > 3) {
            return;
        }
        char ll = str.charAt(0);
        if (ll == 'A') {
            int leftmove = 0;
            for (int i = 1; i < str.length(); i++) {
                if (str.charAt(i) < '0' || str.charAt(i) > '9') {
                    return;
                }
                leftmove = leftmove * 10 + str.charAt(i) - '0';
            }
            result[0] = result[0] - leftmove;
        }
      if (ll == 'D') {
            int rightmove = 0;
            for (int i = 1; i < str.length(); i++) {
                if (str.charAt(i) < '0' || str.charAt(i) > '9') {
                    return;
                }
                rightmove = rightmove * 10 + str.charAt(i) - '0';
            }
            result[0] = result[0] + rightmove;
      }
      if (ll == 'W') {
            int upmove = 0;
            for (int i = 1; i < str.length(); i++) {
                if (str.charAt(i) < '0' || str.charAt(i) > '9') {
                    return;
                }
                upmove = upmove * 10 + str.charAt(i) - '0';
            }
            result[1] = result[1] + upmove;
      }
      if (ll == 'S') {
            int downmove = 0;
            for (int i = 1; i < str.length(); i++) {
                if (str.charAt(i) < '0' || str.charAt(i) > '9') {
                    return;
                }
                downmove = downmove * 10 + str.charAt(i) - '0';
            }
            result[1] = result[1] - downmove;
      }
    }
}