duration java

持續(xù)時間類minusMillis()方法 (Duration Class minusMillis() method)

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

  minusMillis()方法在java.time包中可用。

• minusMillis() method is used to subtract the given duration in milliseconds from this Duration and returns the Duration.

  minusMillis()方法用于從此Duration中減去給定的持續(xù)時間(以毫秒為單位)，并返回Duration。

• minusMillis() 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.

  minusMillis()方法是一種非靜態(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，則會收到錯誤消息。

• minusMillis() method may throw an exception at the time of performing subtraction.

  minusMillis()方法在執(zhí)行減法時可能會引發(fā)異常。

  ArithmeticException: This exception may throw when the calculated result value exceeds the limit.

  ArithmeticException ：當計算結果值超過限制時，可能引發(fā)此異常。

Syntax:

句法：

public Duration minusMillis(long millis_val);

Parameter(s):

參數：

• long millis_val – represents the milliseconds to be subtracted from this Duration.

  long millis_val –表示要從此Duration中減去的毫秒數。

Return value:

返回值：

The return type of this method is Duration, it returns the Duration that holds the value subtracted the given milliseconds from this Duration.

此方法的返回類型為Duration ，它返回的Duration保留從該Duration中減去給定毫秒數的值。

Example:

例：

// Java program to demonstrate the example // of minusMillis(long millis_val) method of Durationimport java.time.*;public class MinusMillisOfDuration {public static void main(String args[]) {long millis = 2;// Instantiates two Duration objectsDuration du1 = Duration.ofMillis(5);Duration du2 = Duration.ofSeconds(2);// Display du1, du2 System.out.println("du1: " + du1);System.out.println("du2: " + du2);System.out.println();// subtracts the given duration// in milliseconds from this Duration du1 // and returns the Duration i.e. here we // are substracting the given 2 milliseconds// from this du1 that holds the value of 5 // millisecondsDuration minus_val = du1.minusMillis(millis);// Display minus_valSystem.out.println("du1.minusMillis(millis): " + minus_val);// subtracts the given duration// in milliseconds from this Duration du2 // and returns the Duration i.e. here we // are substracting the given 2 milliseconds// from this du2 that holds the value of 2// secondsminus_val = du2.minusMillis(millis);// Display minus_valSystem.out.println("du2.minusMillis(millis): " + minus_val);} }

Output

輸出量

du1: PT0.005S du2: PT2Sdu1.minusMillis(millis): PT0.003S du2.minusMillis(millis): PT1.998S

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

duration java

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