Java 中的 JapaneseDate lengthOfMonth()方法,示例

原文:https://www . geesforgeks . org/japanesedate-length of month-in-method-in-Java-with-examples/

Java . time . chrono . japanesedate类的 lengthOfMonth() 方法用于获取特定日本日期代表的一个月中的天数。

语法:

public int lengthOfMonth()

参数:该方法不接受任何参数作为参数。

返回值:该方法返回特定日本日期代表的一个月中的天数

以下是说明月长()方法的示例:

例 1:

Java 语言(一种计算机语言,尤用于创建网站)

// Java program to demonstrate
// lengthOfMonth() 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 length of a month
            // by using lengthOfMonth() method
            int length = hidate.lengthOfMonth();

            // Display the result
            System.out.println("no of day present: "
                               + length);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: "
                               + e);
        }
    }
}

Output:

no of day present: 31

例 2:

Java 语言(一种计算机语言,尤用于创建网站)

// Java program to demonstrate
// lengthOfMonth() 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.of(2020, 06, 23);

            // Getting length of a month
            // by using lengthOfMonth() method
            int length = hidate.lengthOfMonth();

            // Display the result
            System.out.println(
                "no of day present: "
                + length);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: "
                               + e);
        }
    }
}

Output:

no of day present: 30

参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/chrono/japanesedate . html # length of month–