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RuleBasedCollator hashCode() method in Java with Example

  • Last Updated : 30 Jun, 2021

The hashCode() method of java.text.RuleBasedCollator 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: 
 

Java




// 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 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);
        }
    }
}
Output: 
hashCode is :- 1882448026

 

Example 2: 
 

Java




// 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 new simple rule
            String simple = "< a < c & a < b";
 
            // 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);
        }
    }
}
Output: 
hashCode is :- 2022902017

 

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

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