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:2630-3-18)");
        Scanner scanner = new Scanner(System.in);
        String temp = scanner.nextLine();
        
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        
        try {
            Date date = format.parse(temp);
            Calendar calendar = new GregorianCalendar();
            calendar.setTime(date);
            int day = calendar.get(Calendar.DATE);
            calendar.set(Calendar.DATE, 1);
            
            int maxDate = calendar.getActualMaximum(Calendar.DATE);
            System.out.println("日\t一\t二\t三\t四\t五\t六");
            for(int i=0;i<calendar.get(Calendar.DAY_OF_WEEK)-1;i++){
                System.out.print("\t");
            }
            int j=0;
            //可视化日历程序
            for(int i=1;i<=maxDate;i++){
                if(i==day){
                    System.out.print('*');
                }
                System.out.print(i+"\t");
                int w = calendar.get(Calendar.DAY_OF_WEEK);
                if(w == Calendar.SATURDAY){
                    System.out.print('\n');
                }
                j++;
                calendar.add(Calendar.DATE, 1);
            }
        } catch (ParseException e) {
            // TODO 自动生成的 catch 块
            e.printStackTrace();
        }
    
    }
}