import java.util.Scanner;
/**
 * @author gyf
 * @ClassName Test
 * @Date 2024/7/31 13:39
 * @Version V1.0
 * @Description :
 */
public class Test {
    public static void main(String[] args) {
        // StringBuilder 的场景
        // 1.字符串的拼接
        // 2.字符串的反转
        Scanner scanner = new Scanner(System.in);
        System.out.println("输入一个字符串：");
        String str = scanner.next();
        System.out.println(str);
        StringBuilder str1 = new StringBuilder(str).reverse();
        System.out.println(str1);

        // 做判断
        String str2 = str1.toString();
        if (str.equals(str2)){
            System.out.println("对称");
        }else {
            System.out.println("非对称");
        }

    }
}