1 import java.util.Scanner;  2  3 public class RegDemo {
     4  5     /**  6      * @param args  7      *            1 对于坐标输入数据的匹配和解析 坐标的形式为"5,f"或"5 f"完成RegDemo的read方法 输入：2,3  8      *            输出：i:2,j:3 输入：2 3 输出：i:2,j:3 正则表达式为：^\d+(,\s?|\s+)?\d+$  9      */ 10     public static void main(String[] args) {
    11         // TODO Auto-generated method stub 12         String s=read("请输入一个坐标："); 13         System.out.println(s); 14     } 15 16     public static String read(String message) {
    17         Scanner console = new Scanner(System.in); 18         while (true) {
    19             System.out.println(message); 20             String str = console.nextLine(); 21             String reg = "^\\d+(,\\s?|\\s+)?\\d+$"; 22             boolean b = str.matches(reg); 23             if (b) {
    24                 String[] data = str.split(",\\s?|\\s+"); 25                 int x = Integer.parseInt(data[0]); 26                 int y = Integer.parseInt(data[1]); 27                 System.out.print("输出为："); 28                 return "i" + ":" + x + "," + "j" + ":" + y; 29             }else 30                 continue; 31         } 32     } 33 }