Currency getInstance() Method in Java with Examples

The getInstance() Method of Currency class in Java is used to retrieve the instance of this currency for a given currency code.

Syntax:

CURRENCY.getInstance(String currency_code)

Parameters: This method accepts one parameter currency_code which is the currency of a particlar currency.



Return Value: This method returns the instance of the currency for a currency code.

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

Below program illustrates the working of getInstance() method:

Program 1:

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// Java Code to illustrate getInstance() 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
        System.out.println("Currency Code of India is: "
                           + curr_ency.toString());
    }
}

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Output:

Currency Code of India is: INR

Program 2:

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// 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
        System.out.println("Currency Code of USA is: "
                           + curr_ency.toString());
    }
}

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Output:

Currency Code of USA is: USD

Program 3: For an invalid Currency Code.

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// Java Code to illustrate getInstance() 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);
        }
    }
}

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Output:

java.lang.IllegalArgumentException


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