Java中的货币 getSymbol 方法及示例

Java中 Currency 类的getSymbol()方法用于检索货币代码的官方符号。

句法：

CURRENCY.getSymbol()

参数：此方法不接受任何参数。

返回值：该方法返回货币的官方符号。

异常：如果调用无效代码，该方法将引发运行时错误。

下面的程序说明了 getSymbol() 方法的工作：

方案一：

// Java Code to illustrate getSymbol() 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 symbol of the currency
        String currency_symbol
            = curr_ency.getSymbol();
        System.out.println("Symbol for the currency of India is: "
                           + currency_symbol);
    }
}

输出：

Symbol for the currency of India is: INR

方案二：

// Java Code to illustrate getSymbol() 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 symbol of the currency
        String currency_symbol
            = curr_ency.getSymbol();
        System.out.println("Symbol for the currency of USA is: "
                           + currency_symbol);
    }
}

输出：

Symbol for the currency of USA is: $

程序 3：对于无效的货币代码。

// Java Code to illustrate getSymbol() 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 symbol of the currency
            String currency_symbol
                = curr_ency.getSymbol();
            System.out.println("Symbol for the currency of USA is: "
                               + currency_symbol);
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出：

java.lang.IllegalArgumentException