ChronoLocalDateTime類的toEpochSecond()方法用於將此ChronoLocalDateTime轉換為自1970-01-01T00:00:00Z以來的秒數。該方法將此ChronoLocalDateTime與作為參數傳遞的偏移量相結合,以計算epoch-second值,該值是從1970-01-01T00:00:00Z開始經過的秒數。時期之後的時間軸上的瞬間為正,早期為負。
用法:
default long toEpochSecond(ZoneOffset offset)
參數:此方法接受參數offset,即區域偏移。
返回值:此方法返回long,它是自1970-01-01T00:00:00Z的紀元以來的秒數,可能為負數。
以下示例程序旨在說明toEpochSecond()方法:
示例1:
// Java program to demonstrate
// ChronoLocalDateTime.toEpochSecond() method
import java.time.*;
import java.time.chrono.*;
public class GFG {
public static void main(String[] args)
{
// create ChronoLocalDateTime object
ChronoLocalDateTime time
= LocalDateTime
.parse("2019-12-31T19:15:30");
// print ChronoLocalDateTime
System.out.println("ChronoLocalDateTime: "
+ time);
// create ZoneId
ZoneOffset zone = ZoneOffset.of("Z");
// print ZoneId
System.out.println("Passed ZoneOffset: "
+ zone);
// print result
System.out.println("Epoch Second: "
+ time.toEpochSecond(zone));
}
}
輸出:
ChronoLocalDateTime: 2019-12-31T19:15:30 Passed ZoneOffset: Z Epoch Second: 1577819730
示例2:
// Java program to demonstrate
// ChronoLocalDateTime.toEpochSecond() method
import java.time.*;
import java.time.chrono.*;
public class GFG {
public static void main(String[] args)
{
// create ChronoLocalDateTime object
ChronoLocalDateTime time
= LocalDateTime.parse(
"2018-10-25T23:12:31.123");
// print ChronoLocalDateTime
System.out.println("ChronoLocalDateTime: "
+ time);
// create ZoneId
ZoneOffset zone = ZoneOffset.of("Z");
// print ZoneId
System.out.println("Passed ZoneOffset: "
+ zone);
// print result
System.out.println("Epoch Second: "
+ time.toEpochSecond(zone));
}
}
輸出:
ChronoLocalDateTime: 2018-10-25T23:12:31.123 Passed ZoneOffset: Z Epoch Second: 1540509151
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注:本文由純淨天空篩選整理自srinam大神的英文原創作品 ChronoLocalDateTime toEpochSecond() method in Java with Examples。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。