Date comparison
In this chapter you will learn:
Methods to compare two dates
boolean after(Date when)Tests if this date is after the specified date.boolean before(Date when)Tests if this date is before the specified date.int compareTo(Date anotherDate)Compares two Dates for ordering.boolean equals(Object obj)Compares two dates for equality.
The following code compares two Java Date objects using after method.
import java.util.Calendar;
import java.util.Date;
/*from j a v a 2 s . c o m*/
public class Main {
public static void main(String[] args) {
Date d1 = Calendar.getInstance().getTime();
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, 2000);
Date d2 = cal.getTime();
System.out.println("First Date : " + d1);
System.out.println("Second Date : " + d2);
System.out.println("Is second date after first ? : " + d2.after(d1));
}
}
The output:
Compare two Java Date objects using compareTo method
import java.util.Calendar;
import java.util.Date;
//from jav a 2 s . c o m
public class Main {
public static void main(String[] args) {
Date d1 = Calendar.getInstance().getTime();
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, 2000);
Date d2 = cal.getTime();
System.out.println("First Date : " + d1);
System.out.println("Second Date : " + d2);
int results = d1.compareTo(d2);
if (results > 0) {
System.out.println("First Date is after second");
} else if (results < 0) {
System.out.println("First Date is before second");
} else {
System.out.println("equal");
}
}
}
The output:
Next chapter...
What you will learn in the next chapter:
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