Java 中的 Instant plusMillis()方法,示例

原文:https://www . geesforgeks . org/instant-plusmillis-method-in-Java-with-examples/

Instant 类plusMillis() 方法将指定的持续时间(以毫秒为单位)添加到该瞬间,并将结果作为即时对象返回。这个返回的即时消息是不可变的。

语法:

public Instant plusMillis(long millisToAdd)

参数:此方法接受一个参数毫秒添加,即毫秒添加。

返回:这个方法返回瞬间加上毫秒。

异常:如果结果超过最大或最小瞬间,该方法抛出以下异常:

  • 日期时间异常:
  • Arithmetic exception: If there is a numerical overflow.

下面的程序说明了 plusMillis()方法:

节目 1:

// Java program to demonstrate
// Instant.plusMillis() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a Instant object
        Instant instant
            = Instant.parse("2018-12-30T19:34:50.63Z");

        // addition of 8800000 MILLI_OF_SECOND
        // means 8800 seconds to this instant
        Instant returnedValue
            = instant.plusMillis(8800000);

        // print result
        System.out.println("Returned Instant: "
                           + returnedValue);
    }
}

节目 2:

// Java program to demonstrate
// Instant.plusMillis() method

import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // create a Instant object
        Instant instant = Instant.now();

        // current Instant
        System.out.println("Current instant: "
                           + instant);

        // addition of 420000 MILLI_OF_SECOND
        // means 420 seconds to this instant
        Instant returnedValue
            = instant.plusMillis(420000);

        // print result
        System.out.println("Returned Instant: "
                           + returnedValue);
    }
}

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/time/instant . html # plusMillis(长)