实验2：制作某年某月的日历。
实验2：制作某年某月的日历。
实验目的：掌握Calendar类的使用。
实验要求：通过键盘输入年份和月份，程序输出相应的日历牌。

------解决方案--------------------
import java.io.*;
import java.util.*;

class CalendarTest 
{
public static void main(String[] args) throws Exception
{
System.out.print("输入年份： ");
BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
int year = Integer. parseInt(br1.readLine());


for(int i=1; i<=12; i++)
{
System.out.println("*******************************************************");
System.out.println("*\t\t"+year+"年"+i+"月\t\t\t");
System.out.println("*******************************************************");
prin(year, i);
System.out.println();
System.out.println();
}


}

public static void prin(int year, int month)
{
Calendar calendar = new GregorianCalendar();

String week[] = {"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};



for (int i=0; i<week.length; i++ )
{
System.out.print(week[i]+"\t");
}
System.out.print("\n");

int monthDay = 0; //一个月的天数



switch (month)
{
case 1: 
case 3:
case 5: 
case 7:
case 8: 
case 10:
case 12: 
monthDay = 31;break;
case 4:
case 6:
case 9: 
case 11:
monthDay = 30;break;
case 2:
monthDay = ((year%4==0&&year%100!=0)||(year%400==0))?29:28;
break;
}

//System.out.println("monthDay = "+monthDay);

calendar.set(year, month-1,1);//设置第一天 通过week[calendar.get(Calendar.DAY_OF_WEEK)-1]拿到第一天是星期几

int count = 0; //记录空格

while (!(week[calendar.get(Calendar.DAY_OF_WEEK)-1].equals(week[count])))
{
count++;
}
for (int j=0; j<count; j++ )
{
System.out.print("\t");
}



for(int i=1; i<=monthDay; i++)
{
calendar.set(year, month-1,i);


System.out.print(" "+i+"\t");

if(week[calendar.get(Calendar.DAY_OF_WEEK)-1].equals("星期六"))
{
System.out.print("\n");

}
}
}
}