JOptionPane mostrando problemas de HTML en Java

Question

Oct 03, 2012, 08:04 AM

JOptionPane mostrando problemas de HTML en Java

Bien, tengo este código, solicita un mes y un año al usuario e imprime el calendario para ese mes. Aunque estoy teniendo algunos problemas.

La edición de fuente HTML solo afecta el mes.Los días de la semana no están alineados en columnas correctamente.

¡Gracias!

package calendar_program;

import javax.swing.JOptionPane;

public class Calendar {

public static void main(String[] args) {
    StringBuilder result=new StringBuilder();

    // read input from user
    int year=getYear();
    int month=getMonth();

    String[] allMonths={
            "", "January", "February", "March", "April", "May", "June",
            "July", "August", "September", "October", "November", "December"
    };

    int[] numOfDays= {0,31,28,31,30,31,30,31,31,30,31,30,31};

    if (month == 2 && isLeapYear(year)) numOfDays[month]=29;

    result.append("    "+allMonths[month]+ "  "+ year+"\n"+" S  M  Tu  W Th  F  S"+"\n");

    int d= getstartday(month, 1, year);

    for (int i=0; i<d; i++){
        result.append("    ");
                // prints spaces until the start day
    }
    for (int i=1; i<=numOfDays[month];i++){
        String daysSpace=String.format("%4d", i);
        result.append(daysSpace);
        if (((i+d) % 7==0) || (i==numOfDays[month])) result.append("\n");
    }
    //format the final result string
    String finalresult= "<html><font face='Arial'>"+result; 
    JOptionPane.showMessageDialog(null, finalresult);
}

//prompts the user for a year
public static int getYear(){
    int year=0;
    int option=0;
    while(option==JOptionPane.YES_OPTION){
        //Read the next data String data
        String aString = JOptionPane.showInputDialog("Enter the year (YYYY) :");
        year=Integer.parseInt(aString);
        option=JOptionPane.NO_OPTION;
    }
    return year;
}

//prompts the user for a month
public static int getMonth(){
    int month=0;
    int option=0;
    while(option==JOptionPane.YES_OPTION){
        //Read the next data String data
        String aString = JOptionPane.showInputDialog("Enter the month (MM) :");
        month=Integer.parseInt(aString);
        option=JOptionPane.NO_OPTION;
    }
    return month;
}

//This is an equation I found that gives you the start day of each month
public static int getstartday(int m, int d, int y){
    int year = y - (14 - m) / 12;
    int x = year + year/4 - year/100 + year/400;
    int month = m + 12 * ( (14 - m) / 12 ) - 2;
    int num = ( d + x + (31*month)/12) % 7;
    return num;
}

//sees if the year entered is a leap year, false if not, true if yes
public static boolean isLeapYear (int year){
    if ((year % 4 == 0) && (year % 100 != 0)) return true;
    if (year % 400 == 0) return true;
    return false;
}
}