打印当前时间。学习使用Date类和Calendar类。

package er;

import java.util.Calendar;

import java.util.Date;

public class question {

public static void main(String[] args) {

Date nowtime = new Date();
System.out.println(nowtime);
Date date1 = new Date(1000);
System.out.println(date1);
Calendar calebdar1 = Calendar.getInstance();
int year,month,day;
year = calebdar1.get(Calendar.YEAR);
month = calebdar1.get(calebdar1.MONTH)+1;
day = calebdar1.get(Calendar.DAY_OF_MONTH);
System.out.println("今天是"+year+"年"+month+"月"+day+"日");

}

}