Java 中 NumberFormat getRoundingMode()方法，带示例

原文:https://www . geesforgeks . org/number format-getroundingmode-method-in-Java-with-examples/

getRoundingMode() 方法是Java . text . Number Format的内置方法，返回给定数字格式中正在使用的舍入模式。

语法 :

public RoundingMode getRoundingMode()

参数:该功能不接受任何参数。

返回值:该函数返回用于该数字格式的舍入模式。

下面是上述功能的实现:

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 for Locale US
        NumberFormat nF
            = NumberFormat.getInstance(
                Locale.US);

        // Prints the Rounding Mode
        System.out.println("The rounding mode"
                           + " value is: "
                           + nF.getRoundingMode());
    }
}

输出:

The rounding mode value is: HALF_EVEN

程序二:

// 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 for Locale CANADA
        NumberFormat nF
            = NumberFormat.getInstance(
                Locale.CANADA);

        // Prints the Rounding Mode
        System.out.println("The rounding mode"
                           + " value is: "
                           + nF.getRoundingMode());
    }
}

输出:

The rounding mode value is: HALF_EVEN

参考:https://docs . Oracle . com/javase/10/docs/API/Java/text/numberformat . html # getRoundingMode()

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