Recently, the school teacher assigned the coursework and made a perpetual calendar. It was very interesting. It took two days to finally write it out. The operation is good and you can run it. This code is suitable for Java beginners like me to read. Please forgive me if it is not well written.
Command line window jar running version
The jar generated by this code is only applicable to the window platform
import java.util.Calendar;
import java.util.Scanner;
/**
* 日历类
* 用于产生日历 输出日历
* 无其他功能
*/
class Calendars {
/**
* 目标年份
* ：
* 未确定查询的目标，该值为 -1
*/
private int targetYear;
/**
* 目标月份
* ：
* 未确定查询的目标，该值为 -1
*/
private int targetMonth;
/**
* 目标日期
* ：
* 未确定查询的目标，该值为 -1
*/
private int targetDay;
/**
* 当前年份
* ：
* 从系统获取当前年份
*/
private int year;
/**
* 当前月份
* ：
* 从系统获取当前月份
*/
private int month;
/**
* 当前日期
* ：
* 从系统获取当前日期
*/
private int day;
/**
* 无参构造方法
* 实现在目标构造时获取到当前日期
* 并将目标日期置为 0
*/
public Calendars(){
targetDay = targetMonth = targetYear = 0;
Calendar rightNow = Calendar.getInstance();
year = rightNow.get(Calendar.YEAR) ;
month = rightNow.get(Calendar.MONTH) + 1;
day = rightNow.get(Calendar.DATE);
}
/**
* 在原无参构造的基础上
* 增加了对目标年月进行的赋值
*
* @param targetYear 目标年份
* @param targetMonth 目标月份
*
*/
public Calendars(int targetYear,int targetMonth){
this();
this.targetYear = targetYear;
this.targetMonth = targetMonth;
this.targetDay = 1;
}
public int getTargetYear() {
return targetYear;
}
public void setTargetYear(int targetYear) {
this.targetYear = targetYear;
}
public int getTargetMonth() {
return targetMonth;
}
public void setTargetMonth(int targetMonth) {
this.targetMonth = targetMonth;
}
public int getTargetDay() {
return targetDay;
}
public void setTargetDay(int targetDay) {
this.targetDay = targetDay;
}
public int getYear() {
return year;
}
public int getMonth() {
return month;
}
public int getDay() {
return day;
}
/**
* 对目标年份进行判断
* 是闰年返回 true
* 不是则返回 false
* @param year int 要判断的年份
* @return : true or false
*/
public boolean isLeap(int year){
//四年一闰逢百不闰四百在闰
//通过逻辑表达式的返回值来判断是否符合条件
boolean k = (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0));
return k;
}
/**
*该方法作用是返回目标年月的第一天是星期几
* @param year int 要判断的年 要求(0,int范围]
* @param month int 要判断的月 要求[1-12]
* @return int [0-6]:[日-六]
*/
public int currentWeek(int year,int month){
//资料查询：公元元年1月1日为星期一
int Y = (year - 1) * 365 + (year - 1) / 4 - (year - 1) / 100
+ (year - 1) / 400;
int D = 0;
for(int i = 1;i < month; i ++){
D += daysInMonth(year,i);
}
return (Y + D + 1) % 7;
}
/**
*该方法的作用是返回当前月份的天数
* @param year int 目标年份
* @param month int 目标月份
* @return int 当前月份天数
*/
public int daysInMonth(int year,int month){
int two = 28;
if(isLeap(year)) {
two ++;
}
switch (month){
case 1: case 3:
case 5: case 7:
case 8: case 10:
case 12: return 31;
case 4: case 6:
case 9: case 11: return 30;
case 2: return two;
default: return -1;
}
}
/**
* 此方法的作用是降低代码的耦合性
* 将日期输出语句包装成一个方法
* @param sentence String 要输出语句
* @param year int 要输出的年份
* @param month int 要输出的月份
* @param day int 要输出的日
*/
public void print(String sentence,int year,int month,int day){
System.out.println("|\t\t\t\t\t\t" + sentence + ":" + year + "-" + month + "-" + day + "\t\t\t\t\t\t|");
}
/**
* 此方法的作用是用给定的符号s打印一行边界
* @param s char 输出的符号
*/
public void printSymbol(char s){
String T = "";
for(int i = 0;i < 111;i ++) T += s;
System.out.println("|" + T + "|" );
}
/**
* 该方法的作用是输出日历
* @param year int 要输出日历的年
* @param month int 要输出日历的月
*/
public void print(int year,int month){
int emptyDate = currentWeek(year,month);
printSymbol('-');
print("当前日期",this.year,this.month,this.day);
printSymbol('-');
if (targetYear > 0) {
print("查询日期",this.targetYear,this.targetMonth,this.targetDay);
}else{
print("查询日期",this.year,this.month,this.day);
}
printSymbol('-');
System.out.println("|\t一\t\t二\t\t三\t\t四\t\t五\t\t六\t\t日\t|" );
System.out.print("|\t");
if (emptyDate == 0) emptyDate = 7;
for(int i = 1;i < emptyDate ;i ++){
System.out.print("\t\t");
}
for(int i = 1;i <= daysInMonth(year,month);i ++){
if(emptyDate == 7 || emptyDate == 0){
System.out.println(i + "\t|");
System.out.print("|\t");
}else{
System.out.print(i + "\t\t");
}
if (i == daysInMonth(year,month)){
for(int j = 1;j < 7 - emptyDate ;j ++){
System.out.print("\t\t");
}
System.out.println("\t|");
}
emptyDate = (emptyDate + 1) % 7;
}
printSymbol('-');
}
}
/**
* 日历+类
* 在日历类的基础上增加了输出查询日期节日的功能
*/
class SuperCalendar extends Calendars{
/**
* 存储节日名称
*/
private final String[] festival;
/**
* 存储节日日期
*
*格式 xx_xx
*/
private final String[] festivalDay;
/**
* 节日数量
*/
private final int FEST_MAX_SIZE;
/**
* 对常量进行初始化
*/
{
FEST_MAX_SIZE = 15;
festivalDay = new String[]{"1_1","2_14","3_8","3_12","4_1","4_5","5_1","5_4","5_8","6_1","6_19","7_1","8_1","9_10","10_1"};
festival = new String[]{"元旦节","情人节","妇女节","植树节","愚人节","清明节","劳动节","青年节","母亲节"
,"儿童节","父亲节","建党节","建军节","教师节","国庆节"};
}
public SuperCalendar(){
super();
}
public SuperCalendar(int year,int month){
super(year,month);
}
public void printCalendar(int year, int month){
super.print(year,month);
}
/**
* 输出日历并输出查询日期是否存在节日
* @param year int 要输出日历的年
* @param month int 要输出日历的月
*/
@Override
public void print(int year, int month) {
//super.print(year, month);
printSymbol('-');
String years = "";
String months = "";
String days = "";
String st = "";
if (year == getYear() && month == getMonth()){
years = "" + getYear();
months = "" + getMonth();
days = "" + getDay();
st = getMonth() + "_" + getDay();
}else {
years = "" + getTargetYear();
months = "" + getTargetMonth();
days = "" + getTargetDay();
st = getTargetMonth() + "_" + getTargetDay();
}
while (years.length() < 4) years = "0" + years;
while (months.length() < 2) months = "0" + months;
while (days.length() < 2) days = "0" + days;
System.out.println("|\t\t\t\t\t 日期\t\t" + years + "-" + months + "-" + days + "\t\t信息\t\t\t\t|");
int i = -1;
for(int j = 0;j < FEST_MAX_SIZE;j ++){
if(festivalDay[j].equals(st)){
i = j;
break;
}
}
if (i >= 0){
System.out.println("|\t\t\t\t\t今日节日:" + "\t\t"+ festival[i] + "\t\t\t\t\t\t|");
}else{
System.out.println("|\t\t\t\t\t今日节日:" + "\t\t无节日\t\t\t\t\t\t|");
}
printSymbol('-');
}
}
/**
* 用于生成变量
* 人机交互等操作放在此类
*/
class RunToSC extends SuperCalendar{
public RunToSC(){
super();
}
public void menu(){
System.out.println("|\t\t\t\t\t\t-----<总菜单>-----\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t0.退出日历\t\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t1.打开日历\t\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t2.查询日历\t\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t3.修改日历\t\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t4.帮助文档\t\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t5.关闭日历\t\t\t\t\t\t\t|");
printSymbol('-');
}
public void inquireMenu(){
System.out.println("|\t\t\t\t\t\t----<查询菜单>----\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t 0.退出查询菜单 \t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t 1.查询今日节日 \t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t 2.查询目标节日 \t\t\t\t\t\t|");
printSymbol('-');
}
public void amendMenu(){
System.out.println("|\t\t\t\t\t\t----<修改菜单>----\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t\t0.退出修改\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t\t1.全部修改\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t\t2.修改年份\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t\t3.修改月份\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t\t4.修改日期\t\t\t\t\t\t|");
printSymbol('-');
}
public void helpDocument(){
System.out.println("|\t\t\t\t\t\t----<帮助文档>----\t\t\t\t\t\t|");
//|---------------------------------------|
System.out.println("|\t\t\t\t\t1. 日历操作方法: \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t a. 根据菜单提示代号进行输入 \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t b. 仅需键盘操作 \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t c. 日历操作错误需要重新输入 \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t2. 操作错误处理方法： \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t a. 日历可以反复操作 \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t b. 请输入合法的代号 \t\t\t\t\t|");
printSymbol('-');
System.out.println("输入任意数字按回车退出...");
}
public void setYear(Scanner input){
System.out.println("请输入带查询年份：");
int years = input.nextInt();
if(years > 0) {
setTargetYear(years);
}else{
System.out.println("请输入正确年份...\n按任意数字回车继续...");
years = input.nextInt();
setYear(input);
}
}
public void setMonth(Scanner input){
System.out.println("请输入带查询月份：");
int months = input.nextInt();
if(months > 0 && months <= 12) {
setTargetMonth(months);
}else{
System.out.println("请输入正确月份...\n按任意数字回车继续...");
months = input.nextInt();
setMonth(input);
}
}
public void setDay(Scanner input){
System.out.println("请输入带查询日期：");
int days = input.nextInt();
int maxDay = daysInMonth(getTargetYear(),getTargetMonth());
if(days > 0 && days <= maxDay) {
setTargetDay(days);
}else{
System.out.println("请输入正确日期...\n按任意数字回车继续...");
days = input.nextInt();
setDay(input);
}
}
public void clear(){
//网上扒的代码***
try {//使用命令的过程可能会出现失败，需要捕获异常
// Process process = Runtime.getRuntime().exec("cls");
new ProcessBuilder("cmd", "/c", "cls")
// 将 ProcessBuilder 对象的输出管道和 Java 的进程进行关联，这个函数的返回值也是一个
// ProcessBuilder
.inheritIO()
// 开始执行 ProcessBuilder 中的命令
.start()
// 等待 ProcessBuilder 中的清屏命令执行完毕
// 如果不等待则会出现清屏代码后面的输出被清掉的情况
.waitFor(); // 清屏命令
} catch (Exception e) {
e.printStackTrace();
}
}
public void run(){
Scanner input = new Scanner(System.in);
if (getTargetDay() == 0){
setTargetYear(getYear());
setTargetMonth(getMonth());
setTargetDay(getDay());
}
int judgeOverall = 1;
int judgeAmend = -1;
int judgeInquire = -1;
int judgeHelp = -1;
int tmp = 0;
boolean outCalender = false;
while (judgeOverall != 0){
print(getYear(),getMonth());
if (outCalender){
printCalendar(getTargetYear(),getTargetMonth());
}
menu();
judgeOverall = input.nextInt();
switch (judgeOverall){
case 0:
//退出日历
break;
case 1: {
//打开日历
outCalender = true;
}break;
case 2:{
//查询日历
clear();
print(getYear(),getMonth());
inquireMenu();
judgeInquire = input.nextInt();
switch (judgeInquire){
case 0:{
judgeInquire = 0;
}break;
case 1:{
clear();
print(getYear(),getMonth());
printCalendar(getYear(),getMonth());
System.out.println("按任意数字回车退出...");
tmp = input.nextInt();
}break;
case 2:{
clear();
print(getTargetYear(),getTargetMonth());
printCalendar(getTargetYear(),getTargetMonth());
System.out.println("按任意数字回车退出...");
tmp = input.nextInt();
}break;
default:
}
}break;
case 3:{
//修改日历
clear();
print(getYear(),getMonth());
amendMenu();
judgeAmend = input.nextInt();
switch (judgeAmend){
case 0:{
judgeAmend = 0;
}break;
case 1:{
setYear(input);
setMonth(input);
setDay(input);
}break;
case 2:{
setYear(input);
}break;
case 3:{
setMonth(input);
}break;
case 4:{
setDay(input);
}break;
default:
}
}break;
case 4:{
//帮助文档
clear();
print(getYear(),getMonth());
helpDocument();
judgeHelp = input.nextInt();
}break;
case 5:{
//关闭日历
outCalender = false;
}break;
default:
}
clear();
}
}
}The code will have a format error when running the idea
Run in the command line window after generating the jar
idea running version
This version will have a format error when running in the command line window
import java.util.Calendar;
import java.util.Scanner;
/**
* 日历类
* 用于产生日历 输出日历
* 无其他功能
*/
class Calendars {
/**
* 目标年份
* ：
* 未确定查询的目标，该值为 -1
*/
private int targetYear;
/**
* 目标月份
* ：
* 未确定查询的目标，该值为 -1
*/
private int targetMonth;
/**
* 目标日期
* ：
* 未确定查询的目标，该值为 -1
*/
private int targetDay;
/**
* 当前年份
* ：
* 从系统获取当前年份
*/
private int year;
/**
* 当前月份
* ：
* 从系统获取当前月份
*/
private int month;
/**
* 当前日期
* ：
* 从系统获取当前日期
*/
private int day;
/**
* 无参构造方法
* 实现在目标构造时获取到当前日期
* 并将目标日期置为 0
*/
public Calendars(){
targetDay = targetMonth = targetYear = 0;
Calendar rightNow = Calendar.getInstance();
year = rightNow.get(Calendar.YEAR) ;
month = rightNow.get(Calendar.MONTH) + 1;
day = rightNow.get(Calendar.DATE);
}
/**
* 在原无参构造的基础上
* 增加了对目标年月进行的赋值
*
* @param targetYear 目标年份
* @param targetMonth 目标月份
*
*/
public Calendars(int targetYear,int targetMonth){
this();
this.targetYear = targetYear;
this.targetMonth = targetMonth;
this.targetDay = 1;
}
public int getTargetYear() {
return targetYear;
}
public void setTargetYear(int targetYear) {
this.targetYear = targetYear;
}
public int getTargetMonth() {
return targetMonth;
}
public void setTargetMonth(int targetMonth) {
this.targetMonth = targetMonth;
}
public int getTargetDay() {
return targetDay;
}
public void setTargetDay(int targetDay) {
this.targetDay = targetDay;
}
public int getYear() {
return year;
}
public int getMonth() {
return month;
}
public int getDay() {
return day;
}
/**
* 对目标年份进行判断
* 是闰年返回 true
* 不是则返回 false
* @param year int 要判断的年份
* @return : true or false
*/
public boolean isLeap(int year){
//四年一闰逢百不闰四百在闰
//通过逻辑表达式的返回值来判断是否符合条件
boolean k = (year % 400 == 0 || (year % 4 == 0 && year % 100 != 0));
return k;
}
/**
*该方法作用是返回目标年月的第一天是星期几
* @param year int 要判断的年 要求(0,int范围]
* @param month int 要判断的月 要求[1-12]
* @return int [0-6]:[日-六]
*/
public int currentWeek(int year,int month){
//资料查询：公元元年1月1日为星期一
int Y = (year - 1) * 365 + (year - 1) / 4 - (year - 1) / 100
+ (year - 1) / 400;
int D = 0;
for(int i = 1;i < month; i ++){
D += daysInMonth(year,i);
}
return (Y + D + 1) % 7;
}
/**
*该方法的作用是返回当前月份的天数
* @param year int 目标年份
* @param month int 目标月份
* @return int 当前月份天数
*/
public int daysInMonth(int year,int month){
int two = 28;
if(isLeap(year)) {
two ++;
}
switch (month){
case 1: case 3:
case 5: case 7:
case 8: case 10:
case 12: return 31;
case 4: case 6:
case 9: case 11: return 30;
case 2: return two;
default: return -1;
}
}
/**
* 此方法的作用是降低代码的耦合性
* 将日期输出语句包装成一个方法
* @param sentence String 要输出语句
* @param year int 要输出的年份
* @param month int 要输出的月份
* @param day int 要输出的日
*/
public void print(String sentence,int year,int month,int day){
System.out.println("|\t\t\t\t\t" + sentence + ":" + year + "-" + month + "-" + day + "\t\t\t\t\t|");
}
/**
* 此方法的作用是用给定的符号s打印一行边界
* @param s char 输出的符号
*/
public void printSymbol(char s){
String T = "";
for(int i = 0;i < 55;i ++) T += s;
System.out.println("|" + T + "|" );
}
/**
* 该方法的作用是输出日历
* @param year int 要输出日历的年
* @param month int 要输出日历的月
*/
public void print(int year,int month){
int emptyDate = currentWeek(year,month);
printSymbol('-');
print("当前日期",this.year,this.month,this.day);
printSymbol('-');
if (targetYear > 0) {
print("查询日期",this.targetYear,this.targetMonth,this.targetDay);
}else{
print("查询日期",this.year,this.month,this.day);
}
printSymbol('-');
System.out.println("|\t一\t\t二\t\t三\t\t四\t\t五\t\t六\t\t日\t|" );
System.out.print("|\t");
for(int i = 1;i < emptyDate ;i ++){
System.out.print("\t\t");
}
for(int i = 1;i <= daysInMonth(year,month);i ++){
if(emptyDate == 7 || emptyDate == 0){
System.out.println(i + "\t|");
System.out.print("|\t");
}else{
System.out.print(i + "\t\t");
}
if (i == daysInMonth(year,month)){
for(int j = 1;j < 7 - emptyDate ;j ++){
System.out.print("\t\t");
}
System.out.println("\t|");
}
emptyDate = (emptyDate + 1) % 7;
}
printSymbol('-');
}
}
/**
* 日历+类
* 在日历类的基础上增加了输出查询日期节日的功能
*/
class SuperCalendar extends Calendars{
/**
* 存储节日名称
*/
private final String[] festival;
/**
* 存储节日日期
*
*格式 xx_xx
*/
private final String[] festivalDay;
/**
* 节日数量
*/
private final int FEST_MAX_SIZE;
/**
* 对常量进行初始化
*/
{
FEST_MAX_SIZE = 15;
festivalDay = new String[]{"1_1","2_14","3_8","3_12","4_1","4_5","5_1","5_4","5_8","6_1","6_19","7_1","8_1","9_10","10_1"};
festival = new String[]{"元旦节","情人节","妇女节","植树节","愚人节","清明节","劳动节","青年节","母亲节"
,"儿童节","父亲节","建党节","建军节","教师节","国庆节"};
}
public SuperCalendar(){
super();
}
public SuperCalendar(int year,int month){
super(year,month);
}
public void printCalendar(int year, int month){
super.print(year,month);
}
/**
* 输出日历并输出查询日期是否存在节日
* @param year int 要输出日历的年
* @param month int 要输出日历的月
*/
@Override
public void print(int year, int month) {
//super.print(year, month);
printSymbol('-');
String years = "";
String months = "";
String days = "";
if (year == getYear() && month == getMonth()){
years = "" + getYear();
months = "" + getMonth();
days = "" + getDay();
}else {
years = "" + getTargetYear();
months = "" + getTargetMonth();
days = "" + getTargetDay();
}
while (years.length() < 4) years = "0" + years;
while (months.length() < 2) months = "0" + months;
while (days.length() < 2) days = "0" + days;
System.out.println("|\t\t\t\t日期\t\t" + years + "-" + months + "-" + days + "\t\t信息\t\t\t\t|");
String st = getTargetMonth() + "_" + getTargetDay();
int i = -1;
for(int j = 0;j < FEST_MAX_SIZE;j ++){
if(festivalDay[j].equals(st)){
i = j;
break;
}
}
if (i >= 0){
System.out.println("|\t\t\t\t\t今日节日:" + "\t\t"+ festival[i] + "\t\t\t\t|");
}else{
System.out.println("|\t\t\t\t\t今日节日:" + "\t\t无节日\t\t\t\t|");
}
printSymbol('-');
}
}
/**
* 用于生成变量
* 人机交互等操作放在此类
*/
class RunToSC extends SuperCalendar{
public RunToSC(){
super();
}
public void menu(){
System.out.println("|\t\t\t\t\t-----<总菜单>-----\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t0.退出日历\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t1.打开日历\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t2.查询日历\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t3.修改日历\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t4.帮助文档\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t5.关闭日历\t\t\t\t\t\t|");
printSymbol('-');
}
public void inquireMenu(){
System.out.println("|\t\t\t\t\t----<查询菜单>----\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t 0.退出查询菜单 \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t 1.查询今日节日 \t\t\t\t\t|");
System.out.println("|\t\t\t\t\t 2.查询目标节日 \t\t\t\t\t|");
printSymbol('-');
}
public void amendMenu(){
System.out.println("|\t\t\t\t\t----<修改菜单>----\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t0.退出修改\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t1.全部修改\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t2.修改年份\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t3.修改月份\t\t\t\t\t\t|");
System.out.println("|\t\t\t\t\t\t4.修改日期\t\t\t\t\t\t|");
printSymbol('-');
}
public void helpDocument(){
System.out.println("|\t\t\t\t\t----<帮助文档>----\t\t\t\t\t|");
//|---------------------------------------|
System.out.println("|\t\t\t1. 日历操作方法: \t\t\t\t|");
System.out.println("|\t\t\t a. 根据菜单提示代号进行输入 \t\t\t\t|");
System.out.println("|\t\t\t b. 仅需键盘操作 \t\t\t\t|");
System.out.println("|\t\t\t c. 日历操作错误需要重新输入 \t\t\t\t|");
System.out.println("|\t\t\t2. 操作错误处理方法： \t\t\t\t|");
System.out.println("|\t\t\t a. 日历可以反复操作 \t\t\t\t|");
System.out.println("|\t\t\t b. 请输入合法的代号 \t\t\t\t|");
printSymbol('-');
System.out.println("输入任意数字按回车退出...");
}
public void setYear(Scanner input){
System.out.println("请输入带查询年份：");
int years = input.nextInt();
if(years > 0) {
setTargetYear(years);
}else{
System.out.println("请输入正确年份...\n按任意数字回车继续...");
years = input.nextInt();
setYear(input);
}
}
public void setMonth(Scanner input){
System.out.println("请输入带查询月份：");
int months = input.nextInt();
if(months > 0 && months <= 12) {
setTargetMonth(months);
}else{
System.out.println("请输入正确月份...\n按任意数字回车继续...");
months = input.nextInt();
setMonth(input);
}
}
public void setDay(Scanner input){
System.out.println("请输入带查询日期：");
int days = input.nextInt();
int maxDay = daysInMonth(getTargetYear(),getTargetMonth());
if(days > 0 && days <= maxDay) {
setTargetDay(days);
}else{
System.out.println("请输入正确日期...\n按任意数字回车继续...");
days = input.nextInt();
setDay(input);
}
}
public void clear(){
//网上扒的代码***
try {//使用命令的过程可能会出现失败，需要捕获异常
// Process process = Runtime.getRuntime().exec("cls");
new ProcessBuilder("cmd", "/c", "cls")
// 将 ProcessBuilder 对象的输出管道和 Java 的进程进行关联，这个函数的返回值也是一个
// ProcessBuilder
.inheritIO()
// 开始执行 ProcessBuilder 中的命令
.start()
// 等待 ProcessBuilder 中的清屏命令执行完毕
// 如果不等待则会出现清屏代码后面的输出被清掉的情况
.waitFor(); // 清屏命令
} catch (Exception e) {
e.printStackTrace();
}
}
public void run(){
Scanner input = new Scanner(System.in);
if (getTargetDay() == 0){
setTargetYear(getYear());
setTargetMonth(getMonth());
setTargetDay(getDay());
}
int judgeOverall = 1;
int judgeAmend = -1;
int judgeInquire = -1;
int judgeHelp = -1;
int tmp = 0;
boolean outCalender = false;
while (judgeOverall != 0){
print(getYear(),getMonth());
if (outCalender){
printCalendar(getTargetYear(),getTargetMonth());
}
menu();
judgeOverall = input.nextInt();
switch (judgeOverall){
case 0:
//退出日历
break;
case 1: {
//打开日历
outCalender = true;
}break;
case 2:{
//查询日历
clear();
print(getYear(),getMonth());
inquireMenu();
judgeInquire = input.nextInt();
switch (judgeInquire){
case 0:{
judgeInquire = 0;
}break;
case 1:{
clear();
print(getYear(),getMonth());
printCalendar(getYear(),getMonth());
System.out.println("按任意数字回车退出...");
tmp = input.nextInt();
}break;
case 2:{
clear();
print(getTargetYear(),getTargetMonth());
printCalendar(getTargetYear(),getTargetMonth());
System.out.println("按任意数字回车退出...");
tmp = input.nextInt();
}break;
default:
}
}break;
case 3:{
//修改日历
clear();
print(getYear(),getMonth());
amendMenu();
judgeAmend = input.nextInt();
switch (judgeAmend){
case 0:{
judgeAmend = 0;
}break;
case 1:{
setYear(input);
setMonth(input);
setDay(input);
}break;
case 2:{
setYear(input);
}break;
case 3:{
setMonth(input);
}break;
case 4:{
setDay(input);
}break;
default:
}
}break;
case 4:{
//帮助文档
clear();
print(getYear(),getMonth());
helpDocument();
judgeHelp = input.nextInt();
}break;
case 5:{
//关闭日历
outCalender = false;
}break;
default:
}
clear();
}
}
}result:
Running prompt: define the RunToCS object, call the run function to run