The calendar shows the Java code for the year in which the input was read _java

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Import java.awt.*;
Import java.awt.event.*;
Import Java.util.Calendar;

Import Javax.swing.JOptionPane;

Class Calendarbean {//define a calendar class
String day[]; Array of Days
int year = month = 9; Given an initial date

public void setyear (int year) {
This.year = year;
}

public int getyear () {
return to year;
}

public void setmonth (int month) {
This.month = month;
}

public int getmonth () {
Return month;
}

Public string[] Getcalendar () {//Get calendar
String a[] = new STRING[42]; Defines a string array
Calendar calendar = Calendar.getinstance ();
Calendar. Set (year, month-1, 1);
int weeks = Calendar. Get (Calendar.day_of_week)-1;
int day = 0;
if (month = 1 | | month = 3 | | | month = 5 | | month = 7 | | month = 8 | | month = | | month = 12) {
Day = 31;
}
if (month = 4 | | month = 6 | | | month = 9 | | month = = 11) {
Day = 30;
}
if (month = = 2) {
If ((year% 4 = 0) && (year% 100!= 0)) | | (Year% 400 = 0)) {
Day = 29;
} else {
Day = 28;
}
}
for (int i = Days of the week, n = 1; i < week + day; i++) {
A[i] = string.valueof (n);
n++;
}
return A;
}
}

Class Calendarframe extends Frame implements ActionListener {
Label labelday[] = new LABEL[42]; An array of days to output the calendar
Button titlename[] = new BUTTON[7]; Keys from Monday to Sunday
String name[] = {"Day", "one", "two", "three", "four", "five", "six"};
TextField Text1, Text2; Define the year and month entered
Button Nextmonth, Previousmonth, Enter; Next month, last month, OK
Label lab1, LAB2, lab3; A string of several literal types
int year = month = 9;
Calendarbean Calendar; Top One amount
Label ShowMessage = new Label ("", label.center); Defining a label to display the current year indicates that the label should be centered.

Public Calendarframe () {//Form class
Panel pcenter = new Panel (); Mosaic
Pcenter.setlayout (New GridLayout (7, 7));
for (int i = 0; i < 7; i++) {//For button Sunday to Saturday add display text
Titlename[i] = new Button (Name[i]);
Pcenter.add (Titlename[i]);
}
for (int i = 0; i < i++) {
Labelday[i] = new Label ("", label.center);
Pcenter.add (Labelday[i]);
}
Calendar = new Calendarbean ();
Calendar.setyear (year); Set year
Calendar.setmonth (month);
String day[] = Calendar.getcalendar (); Set Day
for (int i = 0; i < i++) {//Add a display calendar day to the calendar location loop
Labelday[i].settext (Day[i]);
}
LAB1 = new Label ("Please enter Date"); Call a method new an object
LAB2 = new Label ("year");
LAB3 = new Label ("month");
Enter = New button ("OK");
Text1 = new TextField (10);
Text2 = new TextField (5);
Nextmonth = New button ("next month");
Previousmonth = New button ("Last month");
Enter.addactionlistener (this); Add the specified action listener
Nextmonth.addactionlistener (this);
Previousmonth.addactionlistener (this);
Panel Pnorth = new Panel (), Psouth = new Panel ();
Pnorth.add (LAB1);
Pnorth.add (LAB2);
Pnorth.add (Text1);
Pnorth.add (LAB3);
Pnorth.add (TEXT2);
Pnorth.add (Enter);
Pnorth.add (Previousmonth);
Pnorth.add (Nextmonth);
Psouth.add (ShowMessage);
Showmessage.settext ("Calendar:" + calendar.getyear () + "year" + calendar.getmonth () + "month");
ScrollPane ScrollPane = new ScrollPane (); Container class that implements automatic horizontal and/or vertical scrolling of a single subassembly
Scrollpane.add (Pcenter);
Add (ScrollPane, borderlayout.center);
Add (Pnorth, Borderlayout.north);
Add (Psouth, Borderlayout.south);
}

public void actionperformed (ActionEvent e) {
if (e.getsource () = = Nextmonth) {//If the operation is obtained next month's
Month = month + 1;
if (Month > 12)
month = 1;
Calendar.setmonth (month);
String day[] = Calendar.getcalendar ();
for (int i = 0; i < i++) {
Labelday[i].settext (Day[i]);
}
else if (e.getsource () = = Previousmonth) {
month = month-1;
if (Month < 1)
month = 12;
Calendar.setmonth (month);
String day[] = Calendar.getcalendar ();
for (int i = 0; i < i++) {
Labelday[i].settext (Day[i]);
}
} else {
String yea = text1.gettext ();
String Mon = Text2.gettext ();
try {
Year = Integer.parseint (yea); Convert string to int type
month = Integer.parseint (Mon);
if (Month > | | Month < 1 | | Year < 1) {//Error input processing
Joptionpane.showmessagedialog (NULL, "Please enter the correct month or month");
Return
} else {
Calendar.setyear (year);
Calendar.setmonth (month);
}
String day[] = Calendar.getcalendar ();
for (int i = 0; i < i++) {
Labelday[i].settext (Day[i]);
}
catch (numberformatexception ee) {
Joptionpane.showmessagedialog (NULL, "Please enter the correct year and month");
}
}
Showmessage.settext ("Calendar:" + calendar.getyear () + "year" + calendar.getmonth () + "month");
}

}

public class Calendarmainclass {
public static void Main (String args[]) {
Calendarframe frame = new Calendarframe ();
Frame.settitle ("Calendar");
Frame.setbounds (300, 200, 500, 300);
Frame.setvisible (TRUE); Display window
Frame.validate (); Make effective
Frame.addwindowlistener (New Java.awt.event.WindowAdapter () {//Click on the fork to close the frame program
public void windowclosing (Java.awt.event.WindowEvent e) {
System.exit (0);
}
});
}
}