Java Date compareTo() Method

The compareTo() method of Java Date class compares two dates and sort them for order. This method is specified by compareTo in interface Comparable<Date>.

Syntax:

Parameters

anotherDate - a date to be compared

Return

1. It returns the value 0 if the argument Date is equal to this Date.
2. It returns a value less than 0 if this Date is before the Date argument.
3. It returns a value greater than 0 if this Date is after the Date argument.

Exception

NullPointerException will be thrown if anotherDate is null.

Example 1

Output:

Your comparison value is : -1

Example 2

Output:

Your comparision value is : 0

Example 3

Output:

Your comparison value is : 1