Java中的 JapaneseDate now(Clock) 方法和示例

Java.time.chrono.JapaneseDate类的now()方法用于从指定的时钟根据日本日历系统获取当前日本日期。

句法：

public static JapaneseDate now(Clock clock)

参数：此方法采用时钟对象，在此基础上将形成日本日期。

返回值：该方法根据日本日历系统从指定时钟返回当前日本日期。

下面是说明now()方法的示例：

示例 1：

Java

// Java program to demonstrate now() 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 clock
            Clock clock = Clock.systemUTC();
  
            // Creating and initializing
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now(clock);
  
            // Display the result
            System.out.println("JapaneseDate: "
                               + hidate);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: "
                               + e);
        }
    }
}

输出：

JapaneseDate: Japanese Heisei 32-03-23

示例 2：

Java

// Java program to demonstrate now() 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 clock
            Clock clock = Clock.systemDefaultZone();
  
            // Creating and initializing
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now(clock);
  
            // Display the result
            System.out.println("JapaneseDate: "
                               + hidate);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: "
                               + e);
        }
    }
}

输出：

JapaneseDate: Japanese Heisei 32-03-23

参考： https://docs.oracle.com/javase/9/docs/api/ Java/time/chrono/JapaneseDate.html#now-java.time.Clock-