java 控制台简单日历查看

Posted 2020-11-08 algorithmvcerhj

先上代码：

import connection.FirstPanel;

import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;


//为什么使用Date类了呢 因为Calendar类 国际化标准
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner (System.in);
        String[] English = {"一","二","三","四","五","六","日"};
        String[] Month = {"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月",};
        while(sc.hasNext()){
            int cc = 0;
            int year = sc.nextInt();
            Calendar calendar = Calendar.getInstance();
            for(int i = 0 ;i <12;i++){
                System.out.println(Month[cc++]);
                for(int j = 0 ; j <English.length;j++){
                    System.out.printf("%3s",English[j]);
                }
                System.out.println();
                calendar.clear();
                calendar.set(Calendar.YEAR,year);
                calendar.set(Calendar.MONTH,i);
                int Month_Days = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
                int First_Day = calendar.get(Calendar.DAY_OF_WEEK)-1;
                int n =0;
                if (First_Day>0){
                for(int k = 2 ; k<=First_Day ; k++){
                    n = First_Day-1;
                    System.out.printf("%4s"," ");
                }
                }
                if(First_Day==0){
                    n = 6;
                    for(int k = 1 ; k< 7 ;k++){
                        System.out.printf("%4s"," ");
                    }
                }
                for (int k = 1 ;k<=Month_Days;k++){
                    System.out.printf("%3d ",k);
                    n++;
                    if(n%7==0){
                        System.out.println();
                    }

                }
                System.out.println();







                }



            }


        }
    }

利用Java 中的 java.util.Calendar;（国际化标准日期类）给出的一些实例方法。