/Java/Java program for calendar using applet

Java program for calendar using applet

import java.awt.*;

import java.util.GregorianCalendar;

import javax.swing.*;

 

    public class CalendarDisplayApplet extends JApplet {

        // Instance Variables

        GregorianCalendar calendar = new GregorianCalendar();

        int arrange = 7;

        int column = 7;

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

        String[] month = { "January", "Februrary", "March", "April", "May", "June", "July", "August",

                "September", "October", "November", "December"};

        JLabel[][] grid = new JLabel[arrange][column];

        JPanel jpnlCalendar = new JPanel(new GridLayout(7, 7));

        int today = calendar.get(GregorianCalendar.DAY_OF_MONTH);

        int daysInMonth = calendar.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);

        int daysInWeek = calendar.get(GregorianCalendar.DAY_OF_WEEK);

 

        public void init() {

            // setting grid

            for (int i = 0; i < grid.length; i++) {

                for (int j = 0; j < grid[0].length; j++) {

                    grid[i][j] = new JLabel();

                }

 

            }

            // grid layout

            Container contenu = getContentPane();

            for (int i = 0; i < arrange; i++) {

                for (int j = 0; j < column; j++) {

                    jpnlCalendar.add(grid[i][j]);

                }

            }

             

            // adding JPanels + positions

            contenu.add(jpnlCalendar);

 

            // draw week days

            for (int i = 0; i < week.length; i++) {

                grid[0][i].setText(week[i]);

            }

            // draw name of month

            //for (int m = 0; m < month.length; m++) {

                //grid[0][m].setText(month[m]); 

           // }

 

            //conditions for the calendar

            calendar.set(GregorianCalendar.DAY_OF_MONTH, 1);

            int daysInWeek = calendar.get(GregorianCalendar.DAY_OF_WEEK)- 1;

            System.out.print(daysInWeek);

            if (daysInWeek == 0)

                daysInWeek = 7;

            calendar.set(GregorianCalendar.DAY_OF_MONTH, today);

 

            int days = 1;

 

            for (int k = daysInWeek; k < column; k++) {

                grid[1][k].setText(days + "");

                if (days == today)

                    grid[1][k].setText(days + "*");

                days++;

            }

            // draw calendar

            for (int i = 2; i <= column; i++) {

                for (int j = 0; j < arrange; j++) {

                    if (days <= daysInMonth) {

                        grid[i][j].setText(days + "");

                        if (days == today)

                            grid[i][j].setText(days + "*");

                        days++;

                    }

                }

            }

 

        }

    }

Java program for calendar using applet

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Source: tutorialspoint.com

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