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DecimalFormat getGroupingSize() method in Java
  • Last Updated : 01 Apr, 2019

The getGroupingSize() method is a built-in method of the java.text.DecimalFomrat class in Java and is used to get the grouping size for this DecimalFormat instance. The grouping size is defined as the number of digits present between grouping separators in the integer portion of a number. For example, in the number “123, 456.78”, the grouping size is 3

Syntax:

public int getGroupingSize()

Parameters: The function does not accepts any parameter.

Return Value: The function returns the grouping size for this DecimalFormat instance as an integral value.

Below is the implementation of the above function:



Program 1:




// Java program to illustrate the
// getGroupingSize() method
  
import java.text.DecimalFormat;
import java.util.Currency;
import java.util.Locale;
  
public class Main {
    public static void main(String[] args)
    {
  
        // Create the DecimalFormat Instance
        DecimalFormat deciFormat = new DecimalFormat();
  
        // Print the Grouping Size
        System.out.println(deciFormat.getGroupingSize());
    }
}
Output:
3

Program 2:




// Java program to illustrate the
// getGroupingSize() method
  
import java.text.DecimalFormat;
import java.util.Currency;
import java.util.Locale;
  
public class Main {
    public static void main(String[] args)
    {
  
        // Create the DecimalFormat Instance
        DecimalFormat deciFormat = new DecimalFormat();
        deciFormat.applyPattern("##, ##");
  
        // Print the Grouping Size
        System.out.println(deciFormat.getGroupingSize());
    }
}
Output:
2

Reference: https://docs.oracle.com/javase/7/docs/api/java/text/DecimalFormat.html#getGroupingSize()

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