Java中的 JapaneseDate getLong() 方法与示例

Java.time.chrono.JapaneseDate类的getLong()方法用于以长格式检索传递的时间字段。

句法：

public long getLong(TemporalField field)

参数：此方法将任何类型的时间字段作为参数。

返回值：此方法以长格式返回传递的时间字段。

以下是说明getLong()方法的示例：

示例 1：

Java

// Java program to demonstrate
// getLong() method
  
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // creating and initializing
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now();
  
            // getting temporal field in long format
            // by using getLong() method
            long tempo
                = hidate.getLong(
                    ChronoField.EPOCH_DAY);
  
            // display the result
            System.out.println(
                "specified temporal field"
                + "in long format: "
                + tempo);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can"
                + " not form a date");
            System.out.println(
                "Exception thrown: "
                + e);
        }
    }
}

输出：

specified temporal fieldin long format: 18336

示例 2：

Java

// Java program to demonstrate
// getLong() method
  
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // creating and initializing
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now();
  
            // getting temporal field in long format
            // by using getLong() method
            long tempo
                = hidate.getLong(
                    ChronoField.DAY_OF_WEEK);
  
            // display the result
            System.out.println(
                "specified temporal field"
                + "in long format: "
                + tempo);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can"
                + " not form a date");
            System.out.println(
                "Exception thrown: "
                + e);
        }
    }
}

输出：

specified temporal fieldin long format: 7

参考： https://docs.oracle.com/javase/9/docs/api/ Java/time/chrono/JapaneseDate.html#getLong-java.time.temporal.TemporalField-