What are best practices for working with NumberFormat/DecimalFormat?

// Import necessary classes
import java.text.NumberFormat;
import java.text.DecimalFormat;
import java.util.Locale;

public class NumberFormatExample {
    public static void main(String[] args) {
        // Creating a NumberFormat instance for default locale
        NumberFormat numberFormat = NumberFormat.getInstance();
        System.out.println("Formatted number: " + numberFormat.format(12345.678));

        // Creating a DecimalFormat instance with a specific pattern
        DecimalFormat decimalFormat = new DecimalFormat("#,###.##");
        System.out.println("Formatted number with pattern: " + decimalFormat.format(12345.678));
        
        // Setting locale for formatting
        NumberFormat euroFormat = NumberFormat.getCurrencyInstance(Locale.FRANCE);
        System.out.println("Currency in Euro: " + euroFormat.format(12345.678));
    }
}