Collator hashCode() method in Java with Example

The hashCode() method of java.text.Collator class is used to get the hashCode for this Collator object.

Syntax:

public abstract int hashCode()

Parameter: This method does not accept any parameter.



Return Value: This method returns hash code value in integer format.

Below are the examples to illustrate the hashCode() method:

Example 1:

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// Java program to demonstrate
// hashCode() method
  
import java.text.*;
import java.util.*;
import java.io.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // Creating and initalizing new simple rule
            String simple = "< a < b < c < d";
  
            // Creating and initializing
            // new RuleBasedCollator Object
            RuleBasedCollator col
                = new RuleBasedCollator(simple);
  
            // getting hashCode of this object
            // using hashCode() mehtod
            int hash = col.hashCode();
  
            // display result
            System.out.println("hashCode is :- "
                               + hash);
        }
  
        catch (ClassCastException e) {
  
            System.out.println("Exception thrown : "
                               + e);
        }
        catch (ParseException e) {
  
            System.out.println("Exception thrown : "
                               + e);
        }
    }
}

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Output:

hashCode is :- 1882448026

Example 2:

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// Java program to demonstrate
// hashCode() 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
                = Collator.getInstance(Locale.UK);
  
            // getting hashCode of this object
            // using hashCode() mehtod
            int hash = col.hashCode();
  
            // display result
            System.out.println("hashCode is :- " + hash);
        }
  
        catch (ClassCastException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

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Output:

hashCode is :- 681002966

Reference: https://docs.oracle.com/javase/9/docs/api/java/text/Collator.html#hashCode–



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