DecimalFormat setDecimalFormatSymbols() method in Java

The setDecimalFormatSymbols() method is a built-in method of the java.text.DecimalFomrat class in Java and is used to set new DecimalFormatSymbols for this DecimalFormat instance. This DecimalFormatSymbols cannot be changed by the programmer or the user.

Syntax:

public void setDecimalFormatSymbols(DecimalFormatSymbols newSymbols)

Parameters: The function accepts a single parameter newSymbols which is the DecimalFormatSymbols instance to be used to set new Decimal format symbols for this instance.

Return Value: The function does not returns any value.

Below is the implementation of the above function:

Program 1:

// Java program to illustrate the
// setDecimalFormatSymbols() method

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
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();

        // Get the DecimalFormatSymbols Instance
        DecimalFormatSymbols dfs = deciFormat.getDecimalFormatSymbols();

        // Set the DecimalFormatSymbols
        deciFormat.setDecimalFormatSymbols(dfs);

        System.out.println(deciFormat.format(12345.6789));
    }
}

Output:

12, 345.679

Program 2:

// Java program to illustrate the
// setDecimalFormatSymbols() method

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
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();

        // Get the DecimalFormatSymbols Instance
        DecimalFormatSymbols dfs = deciFormat.getDecimalFormatSymbols();
        dfs.setZeroDigit('\u0660');

        // Set the DecimalFormatSymbols
        deciFormat.setDecimalFormatSymbols(dfs);

        System.out.println(deciFormat.format(12345.6789));
    }
}

Output:

??, ???.???

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