题目-1031-字符串反转

import java.util.Scanner;

public class Main {
    
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        
        while(in.hasNext()) {
            String s = in.nextLine();
            String s2 = s.replaceAll(" ", "");
            item(s2);
        }
        in.close();

    }


    private static void item(String s) {
      
        char s1[] = new char[s.length()];
        
        for(int i = 0 ;i<s.length();i++) {
            s1[i] = s.charAt(i);
            if(s1[i]==' ') {
                
            }
        }

        for(int i = s.length()-1;i>=0;i--) {
            System.out.print(s1[i]);
        }
    }
}