How to use NumberFormat (Java)

NumberFormatExample.java

public class NumberFormatExample {
 public String getStatsOf(List<Items> list) {
         // StringBuilder not required, but makes it easier to read
        StringBuilder result = new StringBuilder();

        NumberFormat currencyFormat = NumberFormat.getCurrencyInstance();
        // .setMaximumFractionDigits -- sets how many decimal places it should put
        currencyFormat.setMaximumFractionDigits(0);

        result.append("Statistics of Items\n\n");

        if (propertyList.size() > 0) {
            result.append("n =" + list.size() + "\n");
            result.append("min = " + currencyFormat.format(1) + "\n");
            result.append("max = " + currencyFormat.format(40)) + "\n");
            result.append("range = " + currencyFormat.format(10) + "\n");
            result.append("mean = " + currencyFormat.format(5) + "\n");
            result.append("sd = " + currencyFormat.format(6) + "\n");
            result.append("median = " + currencyFormat.format(7) + "\n");
        }
        
        return result.toString();
        }
}

Example Result