DateFormat equals() Method in Java with Examples

The equals() Method of the DateFormat class is used to compare two DateFormat objects. The method returns True if this DateFormat is equal to the passed object else returns False.

Syntax:

public boolean equals(Object obj)

Parameters: The method takes one parameter obj of Object type and refers to the object that is to be compared with this DateFormat object.



Return Value: The method returns boolean True if both the objects are equal else the method returns False.

Below programs illustrate the working of equals() Method of DateFormat:
Example 1:

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// Java code to illustrate equals() method
  
import java.text.*;
import java.util.*;
  
public class DateFormat_Demo {
    public static void main(String[] args)
    {
        // Initializing the first formatter
        DateFormat DFormat1
            = DateFormat.getDateInstance();
  
        // Initializing the second formatter
        DateFormat DFormat2
            = DateFormat.getDateInstance();
  
        // Displaying both the Formats
        Date date = new Date();
        String str_Date1
            = DFormat1.format(date);
        System.out.println("First: "
                           + (str_Date1));
  
        String str_Date2
            = DFormat2.format(date);
        System.out.println("Second: "
                           + (str_Date2));
  
        // Comparing both the objects
        System.out.println("Equality: "
                           + DFormat1.equals(DFormat2));
    }
}

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Output:

First: Mar 27, 2019
Second: Mar 27, 2019
Equality: true

Example 2:

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// Java code to illustrate equals() method
  
import java.text.*;
import java.util.*;
  
public class DateFormat_Demo {
    public static void main(String[] args)
    {
        // Initializing the first formatter
        DateFormat DFormat1
            = DateFormat.getDateInstance();
  
        // Initializing the second formatter
        DateFormat DFormat2
            = DateFormat.getTimeInstance();
  
        // Displaying both the Formats
        Date date = new Date();
        String str_Date1
            = DFormat1.format(date);
        System.out.println("First: "
                           + (str_Date1));
  
        String str_Date2
            = DFormat2.format(date);
        System.out.println("Second: "
                           + (str_Date2));
  
        // Comparing both the objects
        System.out.println("Equality: "
                           + DFormat1.equals(DFormat2));
    }
}

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Output:

First: Mar 27, 2019
Second: 11:04:25 AM
Equality: false

Reference: https://docs.oracle.com/javase/7/docs/api/java/text/DateFormat.html#equals(java.lang.Object)



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