Java中的 ChronoZonedDateTime toLocalDateTime() 方法及示例

ChronoZonedDateTime接口的toLocalDateTime()方法用于将此 ChronoZonedDateTime 转换为 LocalDateTime。

句法：

default LocalDateTime toLocalDateTime()

参数：此方法不接受任何参数。

返回值：此方法返回LocalDateTime ，与此ChronoZonedDateTime 表示的LocalDateTime 相同。

下面的程序说明了 toLocalDateTime() 方法：

方案一：

// Java program to demonstrate
// ChronoZonedDateTime.toLocalDateTime() method
  
import java.time.*;
import java.time.chrono.*;
import java.time.chrono.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ChronoZonedDateTime object
        ChronoZonedDateTime time
            = ZonedDateTime
                  .parse(
                      "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // print ChronoZonedDateTime
        System.out.println("ChronoZonedDateTime: "
                           + time);
  
        // print result
        System.out.println("LocalDateTime: "
                           + time.toLocalDateTime());
    }
}

输出：

ChronoZonedDateTime: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
LocalDateTime: 2018-12-06T19:21:12.123

方案二：

// Java program to demonstrate
// ChronoZonedDateTime.toLocalDateTime() method
  
import java.time.*;
import java.time.chrono.*;
import java.time.chrono.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create ChronoZonedDateTime object
        ChronoZonedDateTime time
            = ZonedDateTime.parse(
                "1918-10-25T23:12:38.543+02:00[Europe/Paris]");
  
        // print ChronoZonedDateTime
        System.out.println("ChronoZonedDateTime: "
                           + time);
  
        // print result
        System.out.println("LocalDateTime: "
                           + time.toLocalDateTime());
    }
}

输出：

ChronoZonedDateTime: 1918-10-25T23:12:38.543Z[Europe/Paris]
LocalDateTime: 1918-10-25T23:12:38.543

参考： https://docs.oracle.com/javase/9/docs/api/ Java/time/chrono/ChronoZonedDateTime.html#toLocalDateTime–