Why my following code isn't working

Question

Problem:

Write a program to take a string as input and output its reverse.
The given code takes a string as input and converts it into a char array, which contains letters of the string as its elements.

Sample Input:
hello there

Sample Output:
ereht olleh

My Code:

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String text = scanner.nextLine();
char[] arr = text.toCharArray();

//your code goes here

for(int i = arr.length; i >= 0; i--) {
System.out.println(char[i]);
}

}
}

Answer 1

Subtract 1 from arr.length so that i is equal to the last index of the array instead of 1 beyond.