ZonedDateTime equals() method in Java with Examples

The equals() method of ZonedDateTime class in Java is used to compare this ZonedDateTime to the another date-time object passed as parameter. The comparison is based on the offset date-time and the zone. Only objects of type ZonedDateTime are compared with each other and other types return false. The value to be returned by this method is determined as follows:

• if both ZonedDateTime are equal, then true is returned.
• if both ZonedDateTime are not equal, then false is returned.

Syntax:

public boolean equals(Object obj)

Parameters: This method accepts a single parameter obj which represents the object to compare with this ZonedDateTime. This is a mandatory parameter and it should not be null. Return value: This method returns true if both ZonedDateTime are equal else false. Below programs illustrate the equals() method: Program 1:

Java

// Java program to demonstrate
// ZonedDateTime.equals() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create ZonedDateTime objects
        ZonedDateTime zoneddatetime1
            = ZonedDateTime.parse("2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        ZonedDateTime zoneddatetime2
            = ZonedDateTime.parse("2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        // apply equals()
        boolean value = zoneddatetime1.equals(zoneddatetime2);

        // print result
        System.out.println("Both ZonedDateTime are equal: " + value);
    }
}

Output:

Both ZonedDateTime are equal: true

Program 2:

Java

// Java program to demonstrate
// ZonedDateTime.equals() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create ZonedDateTime objects
        ZonedDateTime zoneddatetime1
            = ZonedDateTime.parse("2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        ZonedDateTime zoneddatetime2
            = ZonedDateTime.parse("2018-12-16T20:28:33.213+05:30[Asia/Calcutta]");

        // apply equals()
        boolean value = zoneddatetime1.equals(zoneddatetime2);

        // print result
        System.out.println("Both ZonedDateTime are equal: " + value);
    }
}

Output:

Both ZonedDateTime are equal: false

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/ZonedDateTime.html#equals(java.lang.Object)

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