diamond xo substring 2 loops

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/**
 *
 * @author andika
 */
public class test {

    public static void main(String[] args) {
        int n = 5;
        String pattern = Pad("",n,"xo");
        for (int i = 0; i < n; i++) {
            String print = pattern.substring(0, (2 * i) + 1);
            System.out.println(Pad(print, (n-i-1)+print.length(), " "));
        }
        for (int i = n-1; i > 0; i--) {
             String print = pattern.substring(0, (2 * i) - 1);
             System.out.println(Pad(print, (n-i)+print.length(), " "));
        }
    }

  

    public static String Pad(String str, Integer length, String pattern) {
        if(str.length()==length){
            return str;
        }
        return String.format("%" + (length - str.length()) + "s", "")
                .replace(" ", pattern)
                + str;
    }
}