Java 将给定字符串的正序和反序进行连接

• 参数 String
• 返回值 String

public class Demo {

    public String reverseAndConcat(String s){ //将字符串反转并拼接

        return s.concat(new String(new StringBuilder(s).reverse()));

    }

    public static void main(String[] args){
        Demo demo = new Demo();
        String str = "zgh666";
        System.out.println(demo.reverseAndConcat(str));//zgh666666hgz
    }
}