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📜  Java中的 OffsetTime get() 方法及示例

📅  最后修改于: 2022-05-13 01:54:30.444000             🧑  作者: Mango

Java中的 OffsetTime get() 方法及示例

Java中OffsetTime类的get()方法从此时获取指定字段的值作为int。
句法 :

public int get(TemporalField field)

参数:此方法接受一个参数字段,该字段指定要获取的字段,而不是 null。
返回值:它返回字段的值。
异常:该函数抛出三个异常,如下所述:

  • UnsupportedTemporalTypeException :如果该字段不受支持或值的范围超过一个 int,则抛出该异常
  • DateTimeException :如果无法获取该字段的值或该值超出该字段的有效值范围,则抛出该异常。
  • ArithmeticException : 如果发生数值溢出则抛出

下面的程序说明了get()方法:
程序 1:

Java
// Java program to demonstrate the get() method
 
import java.time.OffsetTime;
import java.time.temporal.ChronoField;
 
public class GFG {
    public static void main(String[] args)
    {
 
        // Parses the time
        OffsetTime time = OffsetTime.parse("15:30:30+07:00");
 
        // gets the time
        System.out.println(time.get(ChronoField.CLOCK_HOUR_OF_DAY));
    }
}


Java
// Java program to demonstrate the get() method
 
import java.time.OffsetTime;
import java.time.temporal.ChronoField;
 
public class GFG {
    public static void main(String[] args)
    {
        try {
            // Parses the time
            OffsetTime time = OffsetTime.parse("25:30:30+01:00");
 
            // gets the time
            System.out.println(time.get(ChronoField.CLOCK_HOUR_OF_DAY));
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}


输出:
15

方案二

Java

// Java program to demonstrate the get() method
 
import java.time.OffsetTime;
import java.time.temporal.ChronoField;
 
public class GFG {
    public static void main(String[] args)
    {
        try {
            // Parses the time
            OffsetTime time = OffsetTime.parse("25:30:30+01:00");
 
            // gets the time
            System.out.println(time.get(ChronoField.CLOCK_HOUR_OF_DAY));
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
输出:
java.time.format.DateTimeParseException: Text '25:30:30+01:00' could not be parsed: Invalid value for HourOfDay (valid values 0 - 23): 25

参考:https: Java/time/OffsetTime.html#get-java.time.temporal.TemporalField-