(JAVA，NetBeans)我需要程序在应答窗口中只显示小数后的2个数字

import java.text.DecimalFormat;

public class Main {
    public static void main(String[] args) {
        double number = 3.1415926;
        DecimalFormat df = new DecimalFormat("#.##");
        String formattedNumber = df.format(number);
        System.out.println(formattedNumber);
    }
}