RuleBasedCollator equals() method in Java with Example

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

Syntax:

public boolean equals(String source,
                      String target)

Parameter: This method takes two strings between which comparison is going to take place.
Return Value: if both strings 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
            // RuleBasedCollator Object
            RuleBasedCollator col
                = new RuleBasedCollator("< a< b< c< d");

            // Creating an initializing
            // object for comparison
            String obj1 = "a";

            // Creating an initializing
            // Object for comparison
            String obj2 = "A";

            // compare both object
            // using equals() method
            boolean i = col.equals(obj1, obj2);

            // display result
            if (i)
                System.out.println(obj1
                                   + " is equal to "
                                   + obj2);
            else
                System.out.println(obj1
                                   + " is not equal to "
                                   + obj2);
        }

        catch (ParseException e) {

            System.out.println(e);
        }
    }
}

Output:

a is not equal to A

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
            // RuleBasedCollator Object
            RuleBasedCollator col
                = new RuleBasedCollator("< a< b< c< d");

            // Creating an initializing
            // object for comparison
            String obj1 = "a";

            // Creating an initializing
            // Object for comparison
            String obj2 = "a";

            // compare both object
            // using equals() method
            boolean i = col.equals(obj1, obj2);

            // display result
            if (i)
                System.out.println(obj1
                                   + " is equal to "
                                   + obj2);
            else
                System.out.println(obj1
                                   + " is not equal to "
                                   + obj2);
        }

        catch (ParseException e) {

            System.out.println(e);
        }
    }
}

Output:

a is equal to a

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