NumberFormat isGroupingUsed() method in Java with Examples

The isGroupingUsed() method is a built-in method of the java.text.NumberFormat returns true is grouping is used in the given format, else it returns false. The grouping in English Locale for a number 567879 can be done as “5, 67, 879”, where the size if locale dependent and is determined by its subclass

Syntax:

public boolean isGroupingUsed()

Parameters: The function does not accepts any parameter.

Return Value: The function returns a boolean value, it returns true if grouping can be used in this format, else false.

Below is the implementation of the above function:

Program 1:

// Java program to implement 
// the above function 

import java.text.NumberFormat; 

import java.util.Locale; 

import java.util.Currency; 

public class Main { 

    public static void main(String[] args) 

        throws Exception 

    { 

        // Get the instance for Locale US 

        NumberFormat nF 

            = NumberFormat 

                  .getPercentInstance( 

                      Locale.US); 

        // Prints the hash-code value 

        if (nF.isGroupingUsed()) 

            System.out.println("Yes!"

                               + " grouping is used"); 

        else

            System.out.println("No!"

                               + " grouping is used"); 

    } 
}

Output:

Yes! grouping is used

Program 2:

// Java program to implement 
// the above function 

import java.text.NumberFormat; 

import java.util.Locale; 

import java.util.Currency; 

public class Main { 

    public static void main(String[] args) 

        throws Exception 

    { 

        // Get the instance for Locale CANADA 

        NumberFormat nF 

            = NumberFormat 

                  .getPercentInstance( 

                      Locale.CANADA); 

        // Prints the hash-code value 

        if (nF.isGroupingUsed()) 

            System.out.println("Yes! "

                               + "grouping is used"); 

        else

            System.out.println("No! "

                               + "grouping is used"); 

    } 
}