题解 | 坐标移动

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 void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        String[] s = in.nextLine().split(";");
        int n = 0;
        int abs[] = {0, 0};
        for (int i = 0; i < s.length; i++) {
            n = 0;
            if (s[i].startsWith("A")) {
                try {
                    n = Math.abs(Integer.parseInt(s[i].substring(1, s[i].length())));
                    if (Math.abs(n) < 100) {
                        abs[0] -= n;
                    }
                } catch (NumberFormatException e) {
                }
            } else if (s[i].startsWith("W")) {
                try {
                    n = Math.abs(Integer.parseInt(s[i].substring(1, s[i].length())));
                    if (Math.abs(n) < 100) {
                        if (Math.abs(n) < 100) {
                            abs[1] += n;
                        }
                    }
                } catch (NumberFormatException e) {
                }
            } else if (s[i].startsWith("S")) {
                try {
                    n = Math.abs(Integer.parseInt(s[i].substring(1, s[i].length())));
                    if (Math.abs(n) < 100) {
                        if (Math.abs(n) < 100) {
                            abs[1] -= n;
                        }
                    }
                } catch (NumberFormatException e) {
                }
            } else if (s[i].startsWith("D")) {
                try {
                    n = Math.abs(Integer.parseInt(s[i].substring(1, s[i].length())));
                    if (Math.abs(n) < 100) {
                        if (Math.abs(n) < 100) {
                            abs[0] += n;
                        }
                    }
                } catch (NumberFormatException e) {
                }
            }
        }
        System.out.println(abs[0] + "," + abs[1]);
    }
}