duration java_Java Duration类| of（）方法与示例

偏执的太偏执、 2023-03-05 13:28 13阅读 0赞

duration java

## ()方法的持续时间类 **(**Duration Class of() method**)** ##

*  **of() method** is available in java.time package.
    
    **of()方法**在java.time包中可用。
 *  **of() method** is used to denotes the given amount (amt) in the given unit (t\_unit) in this Duration.
    
    **of()方法**用于表示此Duration中给定单位(t\_unit)中的给定金额(amt)。
 *  **of() method** is a static method, it is accessible with the class name and if we try to access the method with the class object then we will not get an error.
    
    **of()方法**是一个静态方法，可以使用类名进行访问，如果尝试使用类对象访问该方法，则不会出错。
 *  **of() method** may throw an exception at the time of representing Duration.
    
    **of()方法**在表示Duration时可能会引发异常。
    
     *  **ArithmeticException**: This exception may throw when the calculated result value exceeds the limit.**ArithmeticException** ：当计算结果值超过限制时，可能引发此异常。
     *  **DateTimeException**: This exception may throw when the given unit is not exact in terms of Duration.**DateTimeException** ：如果给定单位的持续时间不正确，则可能引发此异常。

**Syntax:**

**句法：**

public static Duration of(long amt, TemporalUnit t_unit);

**Parameter(s):**

**参数：**

*  long amt – represents the amount in which to use in the given unit.
    
    long amt –表示以给定单位使用的数量。
 *  TemporalUnit t\_unit – represents the unit by which to measure the amount.
    
    TemporalUnit t\_unit –表示测量数量的单位。

**Return value:**

**返回值：**

The return type of this method is Duration, it returns the Duration that holds the amount (amt) value in the given unit.

此方法的返回类型为Duration ，它返回以给定单位保存金额(amt)值的Duration。

**Example:**

**例：**

// Java program to demonstrate the example 
    // of of(long amt, TemporalUnit t_unit) method 
    // of Duration
    
    import java.time.*;
    import java.time.temporal.*;
    
    public class OfDuration {
        
        public static void main(String args[]) {
        
            long amt = 2;
            ChronoUnit amt_unit = ChronoUnit.MINUTES;
    
            // represents the given amount
            // in the given unit i.e here amt 2 is
            // represented in minutes like 2M
            Duration du1 = Duration.of(amt, amt_unit);
    
            // Display du1
            System.out.println("Duration.of(2,minutes): " + du1);
    
            amt_unit = ChronoUnit.DAYS;
    
            // represents the given amount
            // in the given unit i.e. here amt 2 is
            // represented in DAYS like 2D i.e. 48H
            Duration du2 = Duration.of(amt, amt_unit);
    
            // Display du2
            System.out.println("Duration.of(2,days): " + du2);
        }
    }

**Output**

**输出量**

Duration.of(2,minutes): PT2M
    Duration.of(2,days): PT48H

> 翻译自: [https://www.includehelp.com/java/duration-of-method-with-example.aspx][https_www.includehelp.com_java_duration-of-method-with-example.aspx]

duration java

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