DateDiff is an useful java class to calculate difference between two java.util.Date and getting the result represented by days, hours, minutes. See the code above:
import java.util.Date;
import java.util.Calendar;
import java.util.Locale;
public class DateDiff {
private Date d1;
private Date d2;
private final int MSEC_PER_SECOND = 1000;
private final int MSEC_PER_MINUTE = 60*1000;
private final int MSEC_PER_HOUR = 60*60*1000;
private final int MSEC_PER_DAY = 24*60*60*1000;
private long days;
private long hours;
private long minutes;
private long seconds;
public DateDiff() {
d1 = new Date();
d2 = new Date();
compute();
}
public DateDiff(Date d1, Date d2) {
this.d1 = d1;
this.d2 = d2;
compute();
}
/* GETTERS AND SETTERS METHODS */
public Date getD1() {
return d1;
}
public void setD1(Date d1) {
this.d1 = d1;
compute();
}
public Date getD2() {
return d2;
}
public void setD2(Date d2) {
this.d2 = d2;
compute();
}
public long getDays() {
return days;
}
public long getHours() {
return hours;
}
public long getMinutes() {
return minutes;
}
public long getSeconds() {
return seconds;
}
/* BUSINESS METHODS */
public long getDiffInMillisecs() {
return d2.getTime() - d1.getTime();
}
public long getDiffInSeconds() {
return ( d2.getTime() - d1.getTime()) / MSEC_PER_SECOND;
}
public long getDiffInMinutes() {
return ( d2.getTime() - d1.getTime()) / MSEC_PER_MINUTE;
}
public long getDiffInHours() {
return ( d2.getTime() - d1.getTime()) / MSEC_PER_HOUR;
}
public long getDiffInDays() {
return ( d2.getTime() - d1.getTime()) / MSEC_PER_DAY;
}
private void compute() {
days = getDiffInDays();
hours = getDiffInHours() - (getDiffInDays() * 24);
minutes = getDiffInMinutes() - (getDiffInHours() * 60);
seconds = getDiffInSeconds() - (getDiffInMinutes() * 60);
}
public String toString () {
return days+" days, "+hours+" hours, "+minutes+" minutes, "+seconds+" seconds ";
}
public int getWorkingDays() {
Calendar c = Calendar.getInstance();
c.setTime(d1);
int counter = 0;
for ( ; !c.getTime().after(d2) ; c.add(Calendar.DATE, 1) ) {
if (c.get(Calendar.DAY_OF_WEEK)!=Calendar.SATURDAY && c.get(Calendar.DAY_OF_WEEK)!=Calendar.SUNDAY )
counter++;
}
return counter;
}
|
------------------------------------------------------------------------------------------
EXAMPLE OF USAGE:
import java.util.Date;
public class Test {
public static void main (String args[]) {
Date d1 = new Date(2008, 10, 1, 10, 30, 00); // 06/10/2008 10:30:00
Date d2 = new Date(2008, 10, 10, 11, 10, 20); // 22/10/2008 11:10:20
DateDiff diff = new DateDiff( d1 , d2 );
System.out.println(diff);
}
}
0 commenti:
Posta un commento