The setCurrency() method is a built-in method of the java.text.NumberFormat which sets the currency used by this number format when formatting currency values. This does not update the minimum or maximum number of fraction digits used by the number format. It overwrites the initially currency.
Syntax:
public void setCurrency(Currency currency)
Parameters: The function accepts a mandatory parameter currency which specifies the currency to be set up.
Return Value: The function returns nothing, hence has a return type void.
Errors and Exceptions: The function throws two types of exceptions which can be described as below:
- UnsupportedOperationException: it is thrown if the number format class doesn’t implement currency formatting
- NullPointerException it is thrown if currency is null
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 { NumberFormat nF = NumberFormat.getNumberInstance(); // Initially currency System.out.println("Initially Currency: " + nF.getCurrency()); // Currency set to US nF.setCurrency(Currency .getInstance(Locale.CANADA)); // Print the currency System.out.println("Currency set as: " + nF.getCurrency()); }} |
Output:
Initially Currency: USD Currency set as: CAD
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 { try { NumberFormat nF = NumberFormat.getNumberInstance(); // Initially currency System.out.println("Initially Currency: " + nF.getCurrency()); // Currency set to US nF.setCurrency(null); // Print the currency System.out.println("Currency set as: " + nF.getCurrency()); } catch (Exception e) { System.out.println("Exception is: " + e); } }} |
Output:
Initially Currency: USD Exception is: java.lang.NullPointerException
