Reverse first and last

import java.util.Random;
import java.util.Scanner;

public class MainApp {
    public static void main(String[] args) {

        String as = "ana are mere";
        as = as.charAt(as.length()-1) + as.substring(1, as.length() - 1) + as.charAt(0);
        System.out.println(as);
    }
}