Java中的 Currency getDefaultFractionDigits() 方法及示例
Java中Currency 类的getDefaultFractionDigits()方法用于检索或了解该货币的小数位数,这是 ISO 4217 货币代码设置的默认值。
句法:
public int getDefaultFractionDigits()
参数:此方法不接受任何参数。
返回值:此方法返回一个整数值,它是货币的默认小数位数。
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 getDefaultFractionDigits() 方法的工作:
方案一:
// Java Code to illustrate
// getDefaultFractionDigits() 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 fraction digit of the currency
int currency_fracdig
= curr_ency.getDefaultFractionDigits();
System.out.println("INR's fractions digits are: "
+ currency_fracdig);
}
}
输出:
INR's fractions digits are: 2
方案二:
// Java Code to illustrate
// getDefaultFractionDigits() 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("JOD");
// Getting the fraction digit of the currency
int currency_fracdig
= curr_ency.getDefaultFractionDigits();
System.out.println("Jordan's fractions digits are: "
+ currency_fracdig);
}
}
输出:
Jordan's fractions digits are: 3
程序 3:对于无效的货币代码。
// Java Code to illustrate
// getDefaultFractionDigits() 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("JODA");
// Getting the fraction digit of the currency
int currency_fracdig
= curr_ency.getDefaultFractionDigits();
System.out.println("Jordan's fractions digits are: "
+ currency_fracdig);
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
java.lang.IllegalArgumentException