Java program codes: enter a string, and reverse string using java

import java.util.*;
public class ReverseString{

    public static void main(String[]args){
    Scanner input=new Scanner(System.in);
    System.out.print("Enter String: ");
    String st=input.nextLine();
    String str[]=st.split("");
    String reversedSt="";
    for(int i=str.length-1;i>=0;i--){
    reversedSt+=str[i];
    }
    System.out.println("Reversed String is: "+reversedSt);
    }
}