Java year adjustInto()方法及示例

Year 类的 adjustInto() 方法用于调整传递的时间对象，使其具有该方法所适用的年份。该实例是不可改变的，不受该方法调用的影响。

语法

public Temporal adjustInto(Temporal temporal)

参数： 该方法接受 temporal 作为参数，它是要调整的目标时间对象。它不应该是空的。

返回值： 该方法返回调整后的对象。

异常： 该方法会抛出以下异常。

• DateTimeException – 如果不能进行调整。
• ArithmeticException – 如果发生数字溢出。

下面的程序说明了adjustInto()方法：

程序1 :

// Java program to demonstrate
// Year.adjustInto() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a Year object
        Year yr
            = Year.of(2019);
  
        // create a temporal object
        LocalDate date = LocalDate.parse("2007-12-03");
  
        // print instance
        System.out.println("LocalDate :"
                           + date);
  
        // apply adjustInto method of Year class
        LocalDate updatedlocal = (LocalDate)yr.adjustInto(date);
  
        // print instance
        System.out.println("LocalDate after"
                           + " applying adjustInto method: "
                           + updatedlocal);
    }
}

输出:

LocalDate :2007-12-03
LocalDate after applying adjustInto method: 2019-12-03

程序2

// Java program to demonstrate
// Year.adjustInto() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
        // create a Year object
        Year yr
            = Year.of(2032);
  
        // create a temporal object
        LocalDate date = LocalDate.parse("2017-01-13");
  
        // print instance
        System.out.println("LocalDate :"
                           + date);
  
        // apply adjustInto method of Year class
        LocalDate updatedlocal = (LocalDate)yr.adjustInto(date);
  
        // print instance
        System.out.println("LocalDate after"
                           + " applying adjustInto method: "
                           + updatedlocal);
    }
}

输出:

LocalDate :2017-01-13
LocalDate after applying adjustInto method: 2032-01-13

**参考资料: ** https://docs.oracle.com/javase/10/docs/api/java/time/Year.html#adjustInto(java.time.temporal.Temporal)。