Método Collator equals(Object) en Java con ejemplo

El método equals() de la clase java.text.Collator se usa para verificar si ambos objetos Collator son iguales o no.
 

Sintaxis:  

public boolean equals(Object that)

Parámetro : Este método toma dos objetos Collator entre los cuales se va a realizar la comparación.
Valor devuelto: si ambos objetos Collator son iguales entre sí, devolverá verdadero, de lo contrario, falso.
A continuación se muestran los ejemplos para ilustrar el método equals() :
Ejemplo 1:  

// 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);
        }
    }
}

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

Ejemplo 2: 

// 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);
        }
    }
}

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

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