OffsetDateTime compareTo() method in Java with examples

The compareTo() method of OffsetDateTime class in Java compares this date-time to another date-time.

Syntax :

public int compareTo(OffsetDateTime other)

Parameter : This method accepts a single parameter other which specifies the other date-time to compare to, not null.



Return Value: It returns the comparator value, negative if less, positive if greater.

Below programs illustrate the compareTo() method:

Program 1 :

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// Java program to demonstrate the compareTo() method
  
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00");
  
        // Parses the date2
        OffsetDateTime date2 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00");
  
        // Prints both dates
        System.out.println("Date1: " + date1);
        System.out.println("Date2: " + date2);
  
        // Compare both
        System.out.println("On coparing we get " + date1.compareTo(date2));
    }
}

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Output:

Date1: 2018-12-12T13:30:30+05:00
Date2: 2018-12-12T13:30:30+05:00
On coparing we get 0

Program 2 :

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// Java program to demonstrate the compareTo() method
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1 = OffsetDateTime.parse("2018-12-12T13:30:30+05:00");
  
        // Parses the date2
        OffsetDateTime date2 = OffsetDateTime.parse("2015-12-12T13:30:30+05:00");
  
        // Prints both dates
        System.out.println("Date1: " + date1);
        System.out.println("Date2: " + date2);
  
        // Compare both
        System.out.println("On coparing we get " + date1.compareTo(date2));
    }
}

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Output:

Date1: 2018-12-12T13:30:30+05:00
Date2: 2015-12-12T13:30:30+05:00
On coparing we get 3

Program 3 :

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// Java program to demonstrate the compareTo() method
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1 = OffsetDateTime.parse("2013-12-12T13:30:30+05:00");
  
        // Parses the date2
        OffsetDateTime date2 = OffsetDateTime.parse("2015-12-12T13:30:30+05:00");
  
        // Prints both dates
        System.out.println("Date1: " + date1);
        System.out.println("Date2: " + date2);
  
        // Compare both
        System.out.println("On coparing we get " + date1.compareTo(date2));
    }
}

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Output:

Date1: 2013-12-12T13:30:30+05:00
Date2: 2015-12-12T13:30:30+05:00
On coparing we get -2

Reference: https://docs.oracle.com/javase/8/docs/api/java/time/temporal/TemporalAdjuster.html



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