给定一个年月日输出万年历
package cn.sxt.java27;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Scanner;
public class TestCalender2 {
public static void main(String[] args) throws ParseException {
Scanner input=new Scanner(System.in);
System.out.println("请输入一个年月日：yyyy-MM-dd");
String str = input.next();//从键盘上获取一个字符串
DateFormat df=new SimpleDateFormat("yyyy-MM-dd");
Date parse = df.parse(str);
Calendar cal=new GregorianCalendar();
cal.setTime(parse);
int day = cal.get(Calendar.DAY_OF_MONTH);//获取月份第几天
//System.out.println("day:"+day);
cal.set(Calendar.DAY_OF_MONTH, 1);
int dayweek= cal.get(Calendar.DAY_OF_WEEK);//获得某月第一天是星期几
System.out.println("日\t一\t二\t三\t四\t五\t六");
for(int i=1;i<dayweek;i++) {
System.out.print(""+"\t");
}
int actualMaximum = cal.getActualMaximum(Calendar.DAY_OF_MONTH);//获取这个月一共多少天
for(int i=1;i<=actualMaximum;i++) {
System.out.print(i);
if(i==day) {
System.out.print("*");
}
System.out.print("\t");
if(cal.get(Calendar.DAY_OF_WEEK)==7) {
System.out.println();
}
cal.add(Calendar.DAY_OF_MONTH, 1);
}
}
}
效果截图
