Java NumberFormat getCurrencyInstance()方法及示例

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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 DollarCA$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 functionimport 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