duration java

持續(xù)時(shí)間類get()方法 (Duration Class get() method)

• get() method is available in java.time package.

  get()方法在java.time包中可用。

• get() method is used to return the value for the given unit.

  get()方法用于返回給定單位的值。

• get() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  get()方法是一個(gè)非靜態(tài)方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會(huì)收到錯(cuò)誤消息。

• get() method may throw an exception at the time of returning value for the given unit.

  get()方法在返回給定單元的值時(shí)可能會(huì)引發(fā)異常。

  • DateTimeException: This exception may throw when the given amt couldn’t convert into a Duration.DateTimeException ：當(dāng)給定的amt無法轉(zhuǎn)換為Duration時(shí)，可能引發(fā)此異常。
  • UnsupportedTemporalTypeException: This exception may throw when the given unit is unsupported.UnsupportedTemporalTypeException ：當(dāng)不支持給定單元時(shí)，可能引發(fā)此異常。

Syntax:

句法：

public long get(TemporalUnit t_unit);

Parameter(s):

參數(shù)：

• TemporalUnit t_unit – represents the temporal unit of the returned value.

  TemporalUnit t_unit –表示返回值的時(shí)間單位。

Return value:

返回值：

The return type of this method is long, it returns the value for the given temporal unit.

此方法的返回類型為long ，它返回給定時(shí)間單位的值。

Example:

例：

// Java program to demonstrate the example // of long get(TemporalUnit t_unit) method of Durationimport java.time.*; import java.time.temporal.*;public class GetOfDuration {public static void main(String args[]) {// Instantiates two Duration objectsDuration du1 = Duration.ofHours(1);Duration du2 = Duration.ofMinutes(5);// Display du1 and du2System.out.println("du1: " + du1);System.out.println("du2: " + du2);// gets the value of the given unit i.e. // here we are requesting the value of // du1 in SECONDS unitlong get_val = du1.get(ChronoUnit.SECONDS);// Display get_valSystem.out.println("du1.get(ChronoUnit.SECONDS): " + get_val);// gets the value of the given unit i.e. // here we are requesting the value of // du2 in SECONDS unitget_val = du2.get(ChronoUnit.SECONDS);// Display get_valSystem.out.println("du2.get(ChronoUnit.SECONDS): " + get_val);} }

Output

輸出量

du1: PT1H du2: PT5M du1.get(ChronoUnit.SECONDS): 3600 du2.get(ChronoUnit.SECONDS): 300

翻譯自: https://www.includehelp.com/java/duration-get-method-with-example.aspx

duration java

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