Collator equals(Object) method in Java with Example

Last Updated : 23 Jan, 2023

The equals() method of java.text.Collator class is used to check if both the Collator objects are same or not.

Syntax:

public boolean equals(Object that)

Parameter: This method takes two Collator objects between which comparison is going to take place.
Return Value: if both Collator objects are equal to each other then it will return true otherwise false.
Below are the examples to illustrate the equals() method:
Example 1:

Java

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

import java.text.*;
import java.util.*;
import java.io.*;

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

            // Creating and initializing new simple rule
            String simple = "< a< b< c< d";

            // Creating and initializing
            // new RuleBasedCollator Object
            RuleBasedCollator col_1
                = new RuleBasedCollator(simple);

            // Creating and initializing
            // Collator Object
            Collator col_2
                = Collator.getInstance(Locale.US);

            // compare both object
            // using equals() method
            boolean i = col_1.equals(col_2);

            // display result
            if (i)
                System.out.println(col_1
                                   + " is equal to "
                                   + col_2);
            else
                System.out.println(col_1
                                   + " is not equal to "
                                   + col_2);
        }

        catch (ClassCastException e) {

            System.out.println("Exception thrown : " + e);
        }
        catch (ParseException e) {

            System.out.println("Exception thrown : " + e);
        }
    }
}

Output:

java.text.RuleBasedCollator@5eb2e1c2 is not equal to java.text.RuleBasedCollator@289747d6

Example 2:

Java

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

import java.text.*;
import java.util.*;
import java.io.*;

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

            // Creating and initializing
            // Collator Object
            Collator col_1
                = Collator.getInstance(Locale.UK);

            // Creating and initializing
            // Collator Object
            Collator col_2
                = Collator.getInstance(Locale.US);

            // compare both object
            // using equals() method
            boolean i = col_1.equals(col_2);

            // display result
            if (i)
                System.out.println(col_1
                                   + " is equal to "
                                   + col_2);
            else
                System.out.println(col_1
                                   + " is not equal to "
                                   + col_2);
        }

        catch (ClassCastException e) {

            System.out.println("Exception thrown : " + e);
        }
    }
}

Output:

java.text.RuleBasedCollator@289747d6 is equal to java.text.RuleBasedCollator@289747d6

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/Collator.html#equals-java.lang.Object-

Collator compare(Object, Object) method in Java with Example

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Collator equals(Object) method in Java with Example

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