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5.8.8. Code exercise 8
5.8.8. Code exercise 8
Last updated: 27 January 2013.
Write a method named getDayOfWeek(int year, int month, int dayOfMonth) that returns the day of the week for the date represented by the given arguments. For example, since January 1st, 2000 was a Saturday, the call getDayOfWeek(2000, 1, 1) returns Saturday.
import java.util.Calendar;
import java.util.GregorianCalendar;
public final class Practice {
private String dayOfWeekToString(int dayOfWeek){
switch(dayOfWeek){
case Calendar.MONDAY : return "Monday";
case Calendar.TUESDAY : return "Tuesday";
case Calendar.WEDNESDAY : return "Wednesday";
case Calendar.THURSDAY : return "Thursday";
case Calendar.FRIDAY : return "Friday";
case Calendar.SATURDAY : return "Saturday";
case Calendar.SUNDAY : return "Sunday";
default : return null;
}
}
public String getDayOfWeek(int year, int month, int dayOfMonth){
if(year <= 0 || month <= 0 || dayOfMonth <= 0)
return null;
GregorianCalendar calendar = new GregorianCalendar(year, month-1, dayOfMonth);
// The second argument is (month-1) because January is 0, February is 1, ...
return dayOfWeekToString(calendar.get(Calendar.DAY_OF_WEEK));
}
}
import java.util.GregorianCalendar;
public final class Practice {
private String dayOfWeekToString(int dayOfWeek){
switch(dayOfWeek){
case Calendar.MONDAY : return "Monday";
case Calendar.TUESDAY : return "Tuesday";
case Calendar.WEDNESDAY : return "Wednesday";
case Calendar.THURSDAY : return "Thursday";
case Calendar.FRIDAY : return "Friday";
case Calendar.SATURDAY : return "Saturday";
case Calendar.SUNDAY : return "Sunday";
default : return null;
}
}
public String getDayOfWeek(int year, int month, int dayOfMonth){
if(year <= 0 || month <= 0 || dayOfMonth <= 0)
return null;
GregorianCalendar calendar = new GregorianCalendar(year, month-1, dayOfMonth);
// The second argument is (month-1) because January is 0, February is 1, ...
return dayOfWeekToString(calendar.get(Calendar.DAY_OF_WEEK));
}
}
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