import java.text.*;

class NumberFormatMain1 {
    public static void main(String[] args){
        NumberFormat formatter = NumberFormat.getNumberInstance();
        // The effect of setting minimum and maximum digits.
        formatter.setMaximumFractionDigits(5);
        System.out.println("Truncated PI = "+formatter.format(Math.PI));
        formatter.setMinimumIntegerDigits(4);
        System.out.println("Truncated PI = "+formatter.format(Math.PI));

    }
}