Java中的即时减秒()方法与示例
Instant 类的minusSeconds()方法从该瞬间中减去指定的秒值,并将结果作为瞬间对象返回。这个瞬间是不变的。
句法:
public Instant minusSeconds(long secondsToSubtract)
参数:此方法接受一个参数secondsToSubtract ,即要减去的秒数。
返回:此方法在减去秒数后返回Instant 。
异常:此方法抛出以下异常:
- DateTimeException : 如果结果超过最大或最小瞬间。
- ArithmeticException : 如果发生数值溢出。
下面的程序说明了 minusSeconds() 方法:
方案一:
Java
// Java program to demonstrate
// Instant.minusSeconds() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a Instant object
Instant instant
= Instant.parse("2018-10-30T09:05:55.13Z");
// current Instant
System.out.println("Initialize instant: "
+ instant);
// subtract 4300 seconds from this instant
Instant returnedValue
= instant.minusSeconds(4300);
// print result
System.out.println("Returned Instant: "
+ returnedValue);
}
}
Java
// Java program to demonstrate
// Instant.minusSeconds() 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);
// subtract 54000 from this instant
Instant returnedValue
= instant.minusSeconds(54000);
// print result
System.out.println("Returned Instant: "
+ returnedValue);
}
}
输出
Initialize instant: 2018-10-30T09:05:55.130Z
Returned Instant: 2018-10-30T07:54:15.130Z
方案二:
Java
// Java program to demonstrate
// Instant.minusSeconds() 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);
// subtract 54000 from this instant
Instant returnedValue
= instant.minusSeconds(54000);
// print result
System.out.println("Returned Instant: "
+ returnedValue);
}
}
输出:
Current instant: 2018-11-27T06:44:04.901Z
Returned Instant: 2018-11-26T15:44:04.901Z
参考资料:https: Java/time/Instant.html#minusSeconds(long)