Java Data Type - 如何格式在左侧和右侧带有零

import java.text.DecimalFormat;

public class Main {

  public static void main(String[] args) {
    double myVal = 12.456;
    DecimalFormat leftside = new DecimalFormat("000.0000000000");
    System.out.println(leftside.format(myVal));
  }

}