用java编写自己的生日是星期几到今天一共多少天

Answer 1

public static void main(String[]args){        Calendar cal=Calendar.getInstance();            long num=cal.getTimeInMillis();                cal.set(1995,9,10);            long num1=cal.getTimeInMillis();            long num2=num-num1;            System.out.println(num2/(1000*24*3600));}