1.2

1.2

public class reverse{
    public static void main(String[] args)
    {
        String test = "abcdefgterhslaa";
        String result = reverse(test);
        System.out.println(result);
    }
    
    public static String reverse(String s)
    {
        String result = "";
        
        if(s.equals(null) || s.length() <= 1)
            return s;
        
        char temp;    
        for(int i = s.length() - 1; i >= 0; i--)
        {
            result = result.concat(s.substring(i,i+1));
        }
        
        return result;
    }
}

I think the problem asks you to write a function without return value.