duration java

持续时间类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()方法用于从此Duration中减去给定的持续时间(以毫秒为单位)，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()方法是一种非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

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

  minusMillis()方法在执行减法时可能会引发异常。

  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。

Syntax:

句法：

    public Duration minusMillis(long millis_val);

Parameter(s):

参数：

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

  long millis_val –表示要从此Duration中减去的毫秒数。

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.

此方法的返回类型为Duration ，它返回的Duration保留从该Duration中减去给定毫秒数的值。

Example:

例：

// Java program to demonstrate the example 
// of minusMillis(long millis_val) method of Duration
import java.time.*;
public class MinusMillisOfDuration {
public static void main(String args[]) {
long millis = 2;
// Instantiates two Duration objects
Duration 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 
// milliseconds
Duration minus_val = du1.minusMillis(millis);
// Display minus_val
System.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
// seconds
minus_val = du2.minusMillis(millis);
// Display minus_val
System.out.println("du2.minusMillis(millis): " + minus_val);
}
}

Output

输出量

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

翻译自: https://www.includehelp.com/java/duration-minusmillis-method-with-example.aspx

duration java