[Java] 如何格式化数字以0补齐

import java.text.DecimalFormat;
import java.text.NumberFormat;

public class NumberFormatLeadingZerosExample {
public static void main(String[] args) {
NumberFormat formatter = new DecimalFormat("0000000");
String number = formatter.format(2500);

System.out.println("Number with lading zeros: " + number);
}
}