ChoiceFormat hashCode() method in Java with Examples

The java.text.ChoiceFormat is a class containing a hashcode() as a function. The hash code for the choice format object is obtained using the ChoiceFormat class. An integer representing this hashcode value is returned.

Syntax:

Parameter: There are no parameters accepted by this method.

Return Value: The hash code for the choice format object is returned by this method as an integer.

Example 1:

The Java code that is given shows how to create a hash code for a ChoiceFormat object by utilizing the hashCode() method in combination with the ChoiceFormat class. A ChoiceFormat object is initialized by the program with a pattern that maps integers 0 through 5 to January through June. In order to obtain a distinct integer hash code that describes the object's state, it then invokes this ChoiceFormat object's hashCode() method. The produced hash code is printed by the program at the end.

Implementation:

FileName: ChoiceHashcodeExample1.java

import java.text.*; 
import java.util.*; 
import java.io.*; 
public class ChoiceHashcodeExample1 
{ 
       public static void main(String[] argv) 
       { 
	// Initializing and creating the choiceformat
	ChoiceFormat chofor = new ChoiceFormat( "0#JANUARY | 1#FEBRUARY | 2#MARCH | 3#APRIL | 4#MAY | 5#JUNE");
        	// Utilizing the hashCode() function, obtain 
        	// the hashcode of the ChoiceFormat object. 
	int hashcode = chofor.hashCode(); 
	System.out.print("The hashCode generated is : " + hashcode); 
       } 
}

Output:

The hashCode generated is : 2288708

Example 2:

The Java program that is given shows how to use the hashCode() method to create a hash code for a ChoiceFormat object. The months of January to April are represented by the number of limitations (1, 2, 3, 4) that are initialized for a ChoiceFormat object. The program creates a distinct integer that represents the state of the ChoiceFormat object by invoking the hashCode() method on the object. The generated hash code is printed at the end.

This example demonstrates how to use arrays of formats and limitations to create a ChoiceFormat object. It also demonstrates how to use the hashCode() function to get the object's unique identifier, which is helpful for a variety of applications, such as putting the object in the hash-based collection.

Implementation:

FileName: ChoiceHashcodeExample2.java

import java.text.*; 
import java.util.*; 
import java.io.*; 
public class ChoiceHashcodeExample2
{ 
     public static void main(String[] argv) 
    { 
	// Initializing and creating the limit
	double[] limit = { 1, 2, 3, 4 }; 
	// Initializing and creating the format
	String[] format = { "JANUARY", "FEBRUARY", "MARCH", "APRIL" }; 
	// Initializing and creating the choiceformat
	ChoiceFormat chofor	= new ChoiceFormat(limit, format); 
	// Utilizing the hashCode() function, obtain 
           // the hashcode of the ChoiceFormat object. 
	int hashcode = chofor.hashCode(); 
	System.out.print("The hashCode generated is : " + hashcode); 
     } 
}

Output: