duration java

持續時間類minusMinutes()方法 (Duration Class minusMinutes() method)

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

  minusMinutes()方法在java.time包中可用。

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

  minusMinutes()方法用于從此Duration中減去以分鐘為單位的給定持續時間，并返回Duration。

• minusMinutes() 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.

  minusMinutes()方法是一種非靜態方法，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。

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

  minusMinutes()方法在執行減法時可能會引發異常。

  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，可能引發此異常。

Syntax:

句法：

    public Duration minusMinutes(long min_val);

Parameter(s):

參數：

• long min_val – represents the minutes to be subtracted from this Duration.

  long min_val –表示要從該持續時間中減去的分鐘。

Return value:

返回值：

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

此方法的返回類型為Duration ，它返回的Duration保留從該Duration中減去給定分鐘數的值。

Example:

例：

// Java program to demonstrate the example 
// of minusMinutes(long min_val) method of Duration
import java.time.*;
public class MinusMinutesOfDuration {
public static void main(String args[]) {
long minutes = 10;
// Instantiates two Duration objects
Duration du1 = Duration.ofMinutes(40);
Duration du2 = Duration.parse("P2DT2H20M");
// Display du1, du2 
System.out.println("du1: " + du1);
System.out.println("du2: " + du2);
System.out.println("minutes to substract:" + minutes);
System.out.println();
// subtracts the given duration
// in minutes from this Duration du1 
// and returns the Duration i.e. here we 
// are substracting the given 10 minutes
// from this du1 that holds the value of 40 
// minutes
Duration minus_val = du1.minusMinutes(minutes);
// Display minus_val
System.out.println("du1.minusMinutes(minutes): " + minus_val);
// subtracts the given duration
// in minutes from this Duration du2 
// and returns the Duration i.e. here we 
// are substracting the given 10 minutes
// from this du2 that holds the value of 
// 2D:2H:20M
minus_val = du2.minusMinutes(minutes);
// Display minus_val
System.out.println("du2.minusMinutes(minutes): " + minus_val);
}
}

Output

輸出量

du1: PT40M
du2: PT50H20M
minutes to substract:10du1.minusMinutes(minutes): PT30M
du2.minusMinutes(minutes): PT50H10M

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

duration java