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Collator equals(Object) method in Java with Example

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  • Last Updated : 22 Sep, 2021
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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 than 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-


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