写一个字符串反转的代码JAVA

public class ReverseString {
public static void main(String[] args) {
String str = "Hello World";
String reverse = reverseString(str);
System.out.println(reverse);
}

public static String reverseString(String str) {
StringBuilder sb = new StringBuilder(str);
sb.reverse();
return sb.toString();
}
}

// 输出结果：dlroW olleH