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Currency getInstance() Method in Java with Examples

  • Last Updated : 09 Jul, 2021

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 particular 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




// 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());
    }
}
Output: 
Currency Code of India is: INR

 

Program 2:
 



Java




// 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());
    }
}
Output: 
Currency Code of USA is: USD

 

Program 3: For an invalid Currency Code.
 

Java




// 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);
        }
    }
}
Output: 
java.lang.IllegalArgumentException

 




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