Java NumberFormat getCurrencyInstance()方法及示例

getCurrencyInstance()

getCurrencyInstance() 方法是 java.text.NumberFormat 的一个内置方法，用于返回当前默认FORMAT地区的货币格式。

语法:

public static final NumberFormat getCurrencyInstance()

参数：该函数不接受任何参数。
返回值 ：该函数返回用于货币格式化的NumberFormat实例。

下面是上述函数的实现。

程序 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
    {
 
        // Get the currency instance
        NumberFormat nF
            = NumberFormat
                  .getCurrencyInstance();
 
        // Sets the currency to Canadian Dollar
        nF.setCurrency(
            Currency.getInstance(
                Locale.CANADA));
 
        // Stores the values
        String values
            = nF.getCurrency()
                  .getDisplayName();
       
          int amount = 1078;
 
        // Prints the currency name
        System.out.println(values);
       
       // Print amount in defined currency
          System.out.println(nF.format(amount));
    }
}

输出

Canadian Dollar
CA$1,078.00

程序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
    {
 
        // Get the currency instance
        NumberFormat nF
            = NumberFormat
                  .getCurrencyInstance(Locale.US);
 
        // Stores the values
        String values
            = nF.getCurrency()
                  .getDisplayName();
           
          double amount = 2193.56;
 
        // Prints the currency
        System.out.println(values);
       
        // Print amount in defined currency
          System.out.println(nF.format(amount));
    }
}

输出

US Dollar
$2,193.56

**参考资料: ** https://docs.oracle.com/javase/10/docs/api/java/text/NumberFormat.html#getCurrencyInstance()

getCurrencyInstance(Locale inLocale)

getCurrencyInstance(Locale inLocale) 方法是 java.text.NumberFormat 的一个内置方法，用于返回任何指定地区的货币格式。

语法 :

public static NumberFormat getCurrencyInstance?(Locale inLocale)

参数：该函数接受一个强制性参数 inLocale ，该参数描述了要指定的语言环境。
返回值 ：该函数返回用于货币格式化的NumberFormat实例。

下面是上述函数的实现。

程序 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
    {
 
        // Get the instance
        NumberFormat nF
            = NumberFormat
                  .getCurrencyInstance(
                      Locale.CANADA);
 
        // Stores the values
        String values
            = nF.getCurrency()
                  .getDisplayName();
       
          double amount = 4538.89;
 
        // Prints the currency
        System.out.println(values);
       
          // Print amount in defined currency
          System.out.println(nF.format(amount));
    }
}

输出