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Currency toString() Method in Java with Examples

  • Last Updated : 27 Dec, 2018

The toString() Method of Currency class in Java is used to retrieve the currency code of this currency which is actually the official ISO 4217 currency code in a string format

Syntax:

CURRENCY.toString()

Parameters: This method does not accept any parameters.

Return Value: This method returns the ISO 4217 currency code of the currency.

Exceptions: The method throws Runtime Error if an invalid code is called.



Below program illustrates the working of toString() method:

Program 1:




// Java Code to illustrate toString() method
  
import java.util.*;
  
public class Currency_Demo {
    public static void main(String[] args)
    {
  
        // Creating a currency with the code
        Currency curr_ency
            = Currency.getInstance("INR");
  
        // Getting the currency code
        String currency_code
            = curr_ency.toString();
        System.out.println("Currency Code of India is: "
                           + currency_code);
    }
}
Output:
Currency Code of India is: INR

Program 2:




// Java Code to illustrate toString() method
  
import java.util.*;
  
public class Currency_Demo {
    public static void main(String[] args)
    {
  
        // Creating a currency with the code
        Currency curr_ency
            = Currency.getInstance("USD");
  
        // Getting the currency code
        String currency_code
            = curr_ency.toString();
        System.out.println("Currency Code of USA is: "
                           + currency_code);
    }
}
Output:
Currency Code of USA is: USD

Program 3: For an invalid Currency Code.




// Java Code to illustrate toString() method
import java.util.*;
  
public class Currency_Demo {
    public static void main(String[] args)
    {
        try {
  
            // Creating a currency with the code
            Currency curr_ency = Currency.getInstance("USDA");
  
            // Getting the currency code
            String currency_code = curr_ency.toString();
  
            System.out.println("Invalid Currency Code: "
                               + currency_code);
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
Output:
java.lang.IllegalArgumentException

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