Java OffsetTime atDate()用法及代碼示例

Java中OffsetTime類的atDate()方法將此時間與日期結合起來以創建OffsetDateTime。

用法:

public OffsetDateTime atDate(LocalDate date)

參數：此方法接受單個參數date，該參數指定要與之合並的日期，而不是null。

返回值：它返回從此時間和指定日期形成的OffsetDateTime，不為null

以下示例程序旨在說明atDate()方法：

示例1:

// Java program to demonstrate the atDate() method 
  
import java.time.LocalDate; 
import java.time.OffsetDateTime; 
import java.time.OffsetTime; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // parses the current date 
        LocalDate date = LocalDate.now(); 
        System.out.println("Current date: " + date); 
  
        // Parses the current time 
        OffsetTime time = OffsetTime.parse("11:10:10+06:03"); 
        OffsetDateTime datetime = time.atDate(date); 
        System.out.println("Current date and time: " + datetime); 
    } 
}

輸出：

Current date: 2018-12-31
Current date and time: 2018-12-31T11:10:10+06:03

程序2：

// Java program to demonstrate the atDate() method 
  
import java.time.LocalDate; 
import java.time.OffsetDateTime; 
import java.time.OffsetTime; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // parses the current date 
        LocalDate date = LocalDate.now(); 
        System.out.println("Current date: " + date); 
  
        // Parses the current time 
        OffsetTime time = OffsetTime.parse("12:15:14+16:03"); 
        OffsetDateTime datetime = time.atDate(date); 
        System.out.println("Current date and time: " + datetime); 
    } 
}

輸出：

Current date: 2018-12-31
Current date and time: 2018-12-31T12:15:14+16:03

參考： https://docs.oracle.com/javase/8/docs/api/java/time/OffsetTime.html#atDate-java.time.LocalDate-

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