Java Currency getSymbol() 方法

2024年11月8日 | 阅读 3 分钟

有两种 getIsntance 方法。

Java Currency getSymbol() 方法

getSymbol() 是 Java Currency 类的方法，用于获取给定货币的符号，显示为默认的 DISPLAY locale。例如，美元的符号是“$”。

语法

以下是 getSymbol() 方法的声明

参数

数据类型	参数	描述
不适用	不适用	此方法不接受任何参数。

返回值

getSymbol() 方法用于获取调用货币的符号，显示为默认 locale。

异常

不适用

兼容版本

Java 1.4 及以上版本

示例 1

import java.util.Currency;
public class CurrencyGetSymbolExample1 {
   public static void main(String args[]) {
     // Create a currency for USD
      Currency cur = Currency.getInstance("USD");
      // Get and print the symbol of the currency
      String symbol = cur.getSymbol();
      System.out.println("Currency symbol is: " + symbol); 
   }
}

输出

Currency symbol is: $

示例 2

import java.util.Locale;
import java.util.Currency;
public class CurrencyGetSymbolExample2 {
    public static void main(String[] args) {
        Currency us = Currency.getInstance(Locale.US);
        System.out.println("Currency symbol of US: " + us.getSymbol());
        Currency germany = Currency.getInstance(Locale.GERMANY);
        System.out.println("Currency symbol of Germany: " + germany.getSymbol());
        Currency uk = Currency.getInstance(Locale.UK);
        System.out.println("Currency symbol of UK: " + uk.getSymbol());
    }
}

输出

Currency Symbol of US: $
Currency symbol of Germany: EUR
Currency symbol of UK: GBP

示例 3

import java.util.*;
public class CurrencyGetSymbolExample3 {
    public static void main(String[] args) {
    	Currency cur = Currency.getInstance("EUR");
    		//In default locale
      	System.out.println("Currency symbol of EUR is: " + cur.getSymbol()); 
      	Locale.setDefault(Locale.UK);
		//Change the default locale
	System.out.println("Currency symbol of EUR is: " + cur.getSymbol());
 }
}

输出

Currency symbol of EUR is: EUR
Currency symbol of EUR is: ?

示例 4

import java.util.Currency;
import java.util.Scanner; 
public class CurrencyGetSymbolExample4 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter the currency: ");  
        String name=sc.next();
        Currency currency = Currency.getInstance(name);
        System.out.println("Currency name is: "+ currency.getDisplayName());
        System.out.println("Currency Symbol is: "+ currency.getSymbol());        
    }
}

输出

Enter the Currency: EUR
Currency name is: Euro
Currency Symbol is: EUR

Enter the Currency: USD
Currency name is: US Dollar
Currency Symbol is: $

Java Currency getSymbol(Locale locale) 方法

getSymbol(Locale locale) 是 Java Currency 类的方法，用于获取调用货币的符号，显示为指定的 locale。例如，对于美元，如果指定的 locale 是 US，则符号是“$”，否则可能是“US$”。

语法

以下是 getSymbol(Locale locale) 方法的声明

参数

数据类型	参数	描述
不适用	locale	locale 是需要给定货币的显示名称。

返回值

getSymbol(Locale locale) 方法返回调用货币的符号，显示为指定的 locale。

异常

NullPointerException？如果 locale 为 Null。

兼容版本

Java 1.4 及以上版本

示例 1

import java.util.*;
public class CurrencyGetSymbolLocaleExample1 {
   public static void main(String args[]) {
      // create a currency for uk locale
      Locale locale = Locale.UK;
      Currency curr = Currency.getInstance(locale);
      // get and print the symbol of the currency
      System.out.println("Currency symbol is: " + curr.getSymbol(locale));
   }
}

输出

Currency symbol is: £

示例 2

import java.util.*;
 public class CurrencyGetSymbolLocaleExample2 {
    public static void main(String[] args) {
        Currency us = Currency.getInstance(Locale.US);
        System.out.println("Currency Symbol:- " + us.getSymbol());
        System.out.println("Currency Symbol With Locale:- " + us.getSymbol(Locale.US));
        Currency uk = Currency.getInstance(Locale.UK);
        System.out.println("\nCurrency Symbol:- " + uk.getSymbol());
        System.out.println("Currency Symbol With Locale:- " + uk.getSymbol(Locale.UK));
 
        Currency germany = Currency.getInstance(Locale.GERMANY);
        System.out.println("\nCurrency Symbol:- " + germany.getSymbol());
        System.out.println("Currency Symbol With Locale:- " + germany.getSymbol(Locale.GERMANY));
    }
}

输出

Currency Symbol: $
Currency Symbol with Locale: $

Currency Symbol: GBP
Currency Symbol with Locale: £

Currency Symbol: EUR
Currency Symbol with Locale: ?

示例 3

import java.util.Currency;
import java.util.Locale;
public class CurrencyGetSymbolLocaleExample3{
  public void displayCurrencySymbols() {
   	Currency currency = Currency.getInstance(Locale.US); 
   	System.out.println("United States: " + currency.getSymbol(Locale.US));
  } 
  public static void main(String[] args){
    	new CurrencyGetSymbolLocaleExample3().displayCurrencySymbols();
  }
}

输出

United States: $

示例 4

import java.util.Currency;
import java.util.Locale;

public class CurrencyGetSymbolLocaleExample4 {
   public static void main(String args[]) {
        Currency currency = Currency.getInstance("USD");
        System.out.println("USD: "+currency.getSymbol());
        System.out.println("USD: "+currency.getSymbol(Locale.CANADA));
        System.out.println("USD: "+currency.getSymbol(new Locale("en","AU")));
   }
}

输出

USD: $
USD: US$
USD: USD

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Java Currency getSymbol() 方法

Java Currency getSymbol() 方法

语法

参数

返回值

异常

兼容版本

示例 1

示例 2

示例 3

示例 4

Java Currency getSymbol(Locale locale) 方法

语法

参数

返回值

异常

兼容版本

示例 1

示例 2

示例 3

示例 4

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Java Currency getSymbol() 方法

Java Currency getSymbol() 方法

语法

参数

返回值

异常

兼容版本

示例 1

示例 2

示例 3

示例 4

Java Currency getSymbol(Locale locale) 方法

语法

参数

返回值

异常

兼容版本

示例 1

示例 2

示例 3

示例 4

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