题解 | #表示数字#

这种写法你绝对见不到第二个！！！

绝对的屎山！！！

import java.util.*;
import java.util.regex.*;
public class Main{
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
        List<Character> list = new ArrayList<Character>();
        while(scan.hasNext()){
            String str = scan.nextLine();
            char[] ch = str.toCharArray();
            char ccc = '*';
            for(char c : ch){
                int size = list.size();
                if(size == 0 && String.valueOf(c).matches("[0-9]")){
                    list.add(ccc);
                    list.add(c);
                    continue;
                }
                else if(size == 0){
                    list.add(c);
                    continue;
                }
                
                if(String.valueOf(c).matches("[^0-9]")&&String.valueOf(list.get(size-1)).matches("[0-9]")){
                   list.add(ccc);
                   list.add(c);
                }
                else if(String.valueOf(c).matches("[^0-9]")&&String.valueOf(list.get(size-1)).matches("[^0-9]")){
                    list.add(c);
                }
                if(String.valueOf(c).matches("[0-9]")&&String.valueOf(list.get(size-1)).matches("[^0-9]")){
                    list.add(ccc);
                    list.add(c);
                }
                else if(String.valueOf(c).matches("[0-9]")&&String.valueOf(list.get(size-1)).matches("[0-9]")){
                    list.add(c);
                }
            }
            if(String.valueOf(list.get(list.size()-1)).matches("[0-9]")){
                list.add(ccc);
            }
            for(char c : list){
                System.out.print(c);
            }
        }
    }
}