Reverse String in Java

The given code reverses the position of each word in a string and stored into the StringBuffer.

import java.util.*;
public class ReverseString{
    public static void main(String[]args){
        Scanner input=new Scanner(System.in);
        StringBuffer buffer=new StringBuffer();
        System.out.println("Enter string: ");
        String str=input.nextLine();
        String array[]=str.split(" ");
        for(int i=array.length-1;i>=0;i--){
            buffer.append(array[i]);
            buffer.append(" ");
        }
        System.out.println("Reverse: " + buffer.toString());
    }
}