java万年历代码闹钟 java实现闹钟

java编写的万年历程序怎么加闹钟功能

import java.text.SimpleDateFormat;

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import java.util.Calendar;

public class TestDate {

public static final String[] weeks = { "日", "一", "二", "三", "四", "五", "六" };

public static void main(String[] args) {

Calendar c = Calendar.getInstance();

c.set(Calendar.YEAR,2011);//2011年

c.set(Calendar.MONTH,0);//java中Calendar类，月从0开始， 0代表一月

c.set(Calendar.DATE,1);//1号

int day = c.get(Calendar.DAY_OF_WEEK);//获致是本周的第几天地, 1代表星期天...7代表星期六

System.out.println(new SimpleDateFormat( "yyyy-MM-dd ").format(c.getTime()));

System.out.println("星期" + weeks[day-1]);

}

}

把以上测试代码写作一个方法 方法的参数名为年月日， 即可。当然Calendar 还有很多功能，比如一周的第几天，一年的第几个月……

用JAVA编写一个万年历

import java.io.*;

class putout{

public void putout(int f,int x,int y){

int i;

int a[]= new int[40];

System.out.println(" 日 一 二 三 四 五 六 "+" "+f+"月");

for (i=0;ix;i++)

{System.out.print(" "); }

for(i=x;ix+y;i++)

a[i]=i-x+1;

for(i=x;ix+y;i++)

{

if ((i%7==0)(i0))

System.out.print("\n");

if (a[i]10)

System.out.print(" "+a[i]);

else System.out.print(" "+a[i]);

}

System.out.println("\n");

}

}

class st{

public static void main(String args[])throws IOException{

putout p=new putout();

int year,mouth,y=1,t,i;

InputStreamReader ir;

BufferedReader in;

ir=new InputStreamReader(System.in);

in=new BufferedReader(ir);

System.out.print("请输入一个年份：");

String s=in.readLine();

year=Integer.parseInt(s);

if((year%4==0 year%100!=0)||(year%400==0))

mouth=1;

else

mouth=0;

y=year;

for(i=1;iyear;i++)

{if((i%4==0 i%100!=0)||(i%400==0))

y++;}

y=y%7;

for(i=1;i13;i++){

switch(i){

case 1: {p.putout(1,y,31);y=(y+31)%7;break;}

case 2: {p.putout(2,y,28+mouth);y=(y+28+mouth)%7;break;}

case 3: {p.putout(3,y,31);y=(y+31)%7;break;}

case 4: {p.putout(4,y,30);y=(y+30)%7;break;}

case 5: {p.putout(5,y,31);y=(y+31)%7;break;}

case 6: {p.putout(6,y,30);y=(y+30)%7;break;}

case 7: {p.putout(7,y,31);y=(y+31)%7;break;}

case 8: {p.putout(8,y,31);y=(y+31)%7;break;}

case 9: {p.putout(9,y,30);y=(y+30)%7;break;}

case 10: {p.putout(10,y,31);y=(y+31)%7;break;}

case 11: {p.putout(11,y,30);y=(y+30)%7;break;}

case 12: {p.putout(12,y,31);y=(y+31)%7;break;}

}

}

}

}

编写 万年历java代码例如1900年一月一日是星期一。

import java.util.Calendar;

import java.util.Date;

import java.util.Scanner;

public class MyCalendar

{

public static void main(String[] args)

{

Scanner scanner = new Scanner(System.in);

String reg = "^(\\d+)[^\\d]+((0?[1-9])|(1[012]))$";

while(true)

{

System.out.println("输入年月(年和月用非数字隔开:如2015.1)(什么都不输入直接退出)");

String line = scanner.nextLine().trim();

if("".equals(line))

{

scanner.close();

break;

}

if(!line.matches(reg))

{

continue;

}

int year = Integer.parseInt(line.replaceAll(reg, "$1"));

int month = Integer.parseInt(line.replaceAll(reg, "$2"));

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

Calendar calendar = Calendar.getInstance();

// 这个月的1号是星期几

calendar.set(year, month - 1, 1);

int day = calendar.get(Calendar.DAY_OF_WEEK);

int start = Calendar.SUNDAY;

calendar.add(Calendar.DATE, -day + start);

while(start  day)

{

System.out.print(calendar.get(Calendar.DATE) + "\t");

calendar.add(Calendar.DATE, 1);

start++;

}

calendar.set(year, month - 1, 1);

Date now = calendar.getTime();

calendar.set(year, month, 1);

Date next = calendar.getTime();

for(Date cur = now; cur.before(next);)

{

calendar.setTime(cur);

int x = calendar.get(Calendar.DATE);

String tmp = x  10 ? "0" + x : x + "";

System.out.print(tmp + "\t");

if(calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY)

{

System.out.println();

}

calendar.add(Calendar.DATE, 1);

cur = calendar.getTime();

}

calendar.add(Calendar.DATE, -1);

int to = calendar.get(Calendar.DAY_OF_WEEK);

int end = Calendar.SATURDAY;

while(to  end)

{

calendar.add(Calendar.DATE, 1);

int x = calendar.get(Calendar.DATE);

String tmp = x  10 ? "0" + x : x + "";

System.out.print(tmp + "\t");

to++;

}

System.out.println();

}

}

}

求一个java swing带界面的万年历代码

按照你的要求编写的Java swing 带界面的万年历代码如下

//日历

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Calendar;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class CCI extends JFrame implements ActionListener{

JButton jb1=new JButton("");

JButton jb2=new JButton("");

JButton jb3=new JButton("");

JButton jb4=new JButton("");

JPanel jp1=new JPanel();

JPanel jp2=new JPanel();

JPanel jp3=new JPanel();

JPanel jp4=new JPanel();

JLabel jl1=new JLabel();

JLabel jl2=new JLabel();

JLabel[]jl=new JLabel[49];

String []week={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};

Calendar c=Calendar.getInstance();

int year,month,day;

int nowyear,nowmonth,nowday;

CCI(){

super("简单日历");

nowyear=c.get(Calendar.YEAR);

nowmonth=c.get(Calendar.MONTH)+1;

nowday=c.get(Calendar.DAY_OF_MONTH);

year=nowyear;

month=nowmonth;

day=nowday;

String s=year+"年"+month+"月";

jl1.setForeground(Color.RED);

jl1.setFont(new Font(null,Font.BOLD,20));

jl1.setText(s);

jb1.addActionListener(this);

jb2.addActionListener(this);

jb3.addActionListener(this);

jb4.addActionListener(this);

jp1.add(jb1);jp1.add(jb2);jp1.add(jl1);jp1.add(jb3);jp1.add(jb4);

jp2.setLayout(null);

createMonthPanel();

jp2.add(jp3);

jl2.setFont(new Font(null,Font.BOLD,20));

jl2.setText("今天是"+nowyear+"年"+nowmonth+"月"+nowday+"日");

jp4.add(jl2);

add(jp1,BorderLayout.NORTH);

add(jp2,BorderLayout.CENTER);

add(jp4,BorderLayout.SOUTH);

setSize(500,500);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setLocationRelativeTo(null);

setVisible(true);

}

@Override

public void actionPerformed(ActionEvent ae) {

if(ae.getSource()==jb1){

year=year-1;

String s=year+"年"+month+"月";

jl1.setText(s);

jp3.removeAll();

createMonthPanel();

jp3.validate();

}

if(ae.getSource()==jb2){

if(month==1){

year=year-1;

month=12;

}else{

month=month-1;

}

String s=year+"年"+month+"月";

jl1.setText(s);

jp3.removeAll();

createMonthPanel();

jp3.validate();

}

if(ae.getSource()==jb3){

if(month==12){

year=year+1;

month=1;

}else{

month=month+1;

}

String s=year+"年"+month+"月";

jl1.setText(s);

jp3.removeAll();

createMonthPanel();

jp3.validate();

}

if(ae.getSource()==jb4){

year=year+1;

String s=year+"年"+month+"月";

jl1.setText(s);

jp3.removeAll();

createMonthPanel();

jp3.validate();

}

}

public static void main(String[] args) {

new CCI();

}

public int getMonthDays(int year, int month) { 

switch (month) {

case 1: 

case 3: 

case 5: 

case 7:

case 8: 

case 10: 

case 12:

return 31; 

case 2: 

if ((year%4==0year%100!=0)||year%400==0) { 

return 29; 

} else { 

return 28; 

} 

default: 

return 30; 

} 

} 

public void createMonthPanel(){

c.set(year, month-1, getMonthDays(year,month));

int weekOfMonth=c.get(Calendar.WEEK_OF_MONTH);

if(weekOfMonth==6){

jp3.setLayout(new GridLayout(7,7));

jp3.setBounds(50, 20, 420, 350);

}else{

jp3.setLayout(new GridLayout(6,7));

jp3.setBounds(50, 20, 420, 300);

}

jp3.setBorder(BorderFactory.createEtchedBorder());

for(int i=0;i7;i++){

jl[i]=new JLabel(week[i],JLabel.CENTER);

jl[i].setFont(new Font(null,Font.BOLD,20));

jl[i].setBorder(BorderFactory.createEtchedBorder());

jp3.add(jl[i]);

}

c.set(year, month-1, 1);

int emptyFirst=c.get(Calendar.DAY_OF_WEEK)-1;

int daysOfMonth=getMonthDays(year,month);

for(int i=6+emptyFirst;i=7;i--){

int intyear=year;

int intmonth=month;

if(intmonth==1){

intyear=intyear-1;

intmonth=12;

}else{

intmonth=intmonth-1;

}

int intdays=getMonthDays(intyear,intmonth);

jl[i]=new JLabel((intdays+7-i)+"",JLabel.CENTER);

jl[i].setFont(new Font(null,Font.BOLD,20));

jl[i].setForeground(Color.GRAY);

jl[i].setBorder(BorderFactory.createEtchedBorder());

jp3.add(jl[i]);

}

for(int i=7+emptyFirst;idaysOfMonth+7+emptyFirst;i++){

jl[i]=new JLabel((i-7-emptyFirst+1)+"",JLabel.CENTER);

jl[i].setFont(new Font(null,Font.BOLD,20));

if((i+1)%7==0 || (i+1)%7==1){

jl[i].setForeground(Color.RED);

}else if((i-7-emptyFirst+1)==nowdaymonth==nowmonthyear==nowyear)

jl[i].setForeground(Color.BLUE);

else

jl[i].setForeground(Color.BLACK);

jl[i].setBorder(BorderFactory.createEtchedBorder());

jp3.add(jl[i]);

}

if(weekOfMonth==6)

for(int i=48;i=daysOfMonth+emptyFirst+7;i--){

jl[i]=new JLabel((49-i)+"",JLabel.CENTER);

jl[i].setFont(new Font(null,Font.BOLD,20));

jl[i].setForeground(Color.GRAY);

jl[i].setBorder(BorderFactory.createEtchedBorder());

jp3.add(jl[i]);

}

else

for(int i=41;i=daysOfMonth+emptyFirst+7;i--){

jl[i]=new JLabel((42-i)+"",JLabel.CENTER);

jl[i].setFont(new Font(null,Font.BOLD,20));

jl[i].setForeground(Color.GRAY);

jl[i].setBorder(BorderFactory.createEtchedBorder());

jp3.add(jl[i]);

}

}

}