java 的Calendar类的可视化日历示例

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;

/**
 * 可视化日历程序
 *
 */
public class VisualCalendar {
    public static void main(String[] args) {
        System.out.println("请输入日期(按照格式：2015-08-17）:");
        Scanner scanner = new Scanner(System.in);
        String temp=scanner.nextLine();

        //String temp ="2015-8-17";
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        try {
            Date date = format.parse(temp);
            //Date 转换成Calendar
            Calendar calender = new GregorianCalendar();
            calender.setTime(date);
            int day = calender.get(Calendar.DATE);
            calender.set(Calendar.DATE, 1);

            int dat_week =calender.get(Calendar.DAY_OF_WEEK);
            int maxDate=calender.getActualMaximum(Calendar.DATE);

            System.out.println("日\t一\t二\t三\t四\t五\t六");

            for(int i=1;i<dat_week;i++){
                System.out.print('\t');
            }

            for(int i=1;i<=maxDate;i++)
            {
                if(i==day){
                    System.out.print("*");
                }
                System.out.print(i+"\t");
                int w = calender.get(Calendar.DAY_OF_WEEK);
                if(w==Calendar.SATURDAY)
                {
                    System.out.print('\n');
                }
                calender.add(Calendar.DATE, 1);

            }

            scanner.close();
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}