java program for calendar using applet

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1import java.awt.*;
2
3import java.util.GregorianCalendar;
4
5import javax.swing.*;
6
7 
8
9    public class CalendarDisplayApplet extends JApplet {
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11        // Instance Variables
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13        GregorianCalendar calendar = new GregorianCalendar();
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15        int arrange = 7;
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17        int column = 7;
18
19        String[] week = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
20
21        String[] month = { "January", "Februrary", "March", "April", "May", "June", "July", "August",
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23                "September", "October", "November", "December"};
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25        JLabel[][] grid = new JLabel[arrange][column];
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27        JPanel jpnlCalendar = new JPanel(new GridLayout(7, 7));
28
29        int today = calendar.get(GregorianCalendar.DAY_OF_MONTH);
30
31        int daysInMonth = calendar.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);
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33        int daysInWeek = calendar.get(GregorianCalendar.DAY_OF_WEEK);
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35 
36
37        public void init() {
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39            // setting grid
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41            for (int i = 0; i < grid.length; i++) {
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43                for (int j = 0; j < grid[0].length; j++) {
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45                    grid[i][j] = new JLabel();
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47                }
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49 
50
51            }
52
53            // grid layout
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55            Container contenu = getContentPane();
56
57            for (int i = 0; i < arrange; i++) {
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59                for (int j = 0; j < column; j++) {
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61                    jpnlCalendar.add(grid[i][j]);
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63                }
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65            }
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67             
68
69            // adding JPanels + positions
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71            contenu.add(jpnlCalendar);
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73 
74
75            // draw week days
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77            for (int i = 0; i < week.length; i++) {
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79                grid[0][i].setText(week[i]);
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81            }
82
83            // draw name of month
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85            //for (int m = 0; m < month.length; m++) {
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87                //grid[0][m].setText(month[m]); 
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89           // }
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91 
92
93            //conditions for the calendar
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95            calendar.set(GregorianCalendar.DAY_OF_MONTH, 1);
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97            int daysInWeek = calendar.get(GregorianCalendar.DAY_OF_WEEK)- 1;
98
99            System.out.print(daysInWeek);
100
101            if (daysInWeek == 0)
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103                daysInWeek = 7;
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105            calendar.set(GregorianCalendar.DAY_OF_MONTH, today);
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107 
108
109            int days = 1;
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111 
112
113            for (int k = daysInWeek; k < column; k++) {
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115                grid[1][k].setText(days + "");
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117                if (days == today)
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119                    grid[1][k].setText(days + "*");
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121                days++;
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123            }
124
125            // draw calendar
126
127            for (int i = 2; i <= column; i++) {
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129                for (int j = 0; j < arrange; j++) {
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131                    if (days <= daysInMonth) {
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133                        grid[i][j].setText(days + "");
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135                        if (days == today)
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137                            grid[i][j].setText(days + "*");
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139                        days++;
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141                    }
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143                }
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145            }
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147 
148
149        }
150
151    }
152