在Java8中，Unicode从右向左覆盖字符不适用于反转字符串

Question

public class ReverseStringUnicodeRightToLeftOverrideCharacter {

    public static String reverse(String str)
        {
            
              return '\u202E' + str;
        }
        public static String reverse(String str)
        {
            //return "\u202D" + str;
              return '\u202E' + str;
        }
public static void main (String[] args)
        {
            
"\u202E" + str  is not working in Java

String str = "Techie Delight";
str = reverse(str);

System.out.println("Reverse of the given string is : " + str); 
            
                  
    }
}

为此，我得到以下输出：

Reverse of the given string is : ?Techie Delight

Answer 1

您必须像这样连接它：

public static String reverse(String str)
    {
        return "\u202E"+str+"\u202D";
    }

将“\u202E”作为字符串而不是字符放在字符串的开头，并将“\u202D”放在要反转的字符串的结尾。