Java 中的日本年代范围()方法,示例

原文:https://www . geesforgeks . org/Japanese 年表-范围-java 中的方法-带示例/

Java . time . chrono . Japanese 年表类的 range() 方法用于从 chrono 类型的指定字段中获取的范围。

语法:

public ValueRange range(ChronoField field)

参数:该方法以型计时场的场为参数。

返回值:该方法从指定的类型为 chrono 的字段中返回的范围。

以下是说明范围()方法的示例:

例 1:

// Java program to demonstrate
// range() 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 JapaneseChronology
            // used in LocalDate
            JapaneseChronology crono
                = hidate.getChronology();

            // getting the ValueRange for
            // given ChronoField
            // by using range() method
            ValueRange range
                = crono.range(ChronoField.ERA);

            // display the result
            System.out.println(
                "Equivalent Range : "
                + range);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can"
                + " not form a date");
            System.out.println(
                "Exception thrown: " + e);
        }
    }
}

输出:

Equivalent Range : -1 - 2

例 2:

// Java program to demonstrate
// range() 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 JapaneseChronology
            // used in LocalDate
            JapaneseChronology crono
                = hidate.getChronology();

            // getting the ValueRange for
            // given ChronoField
            // by using range() method
            ValueRange range
                = crono.range(
                    ChronoField.YEAR);

            // display the result
            System.out.println(
                "Equivalent Range : "
                + range);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can"
                + " not form a date");
            System.out.println(
                "Exception thrown: " + e);
        }
    }
}

输出:

Equivalent Range : 1873 - 999999999

参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/chrono/Japanese seriogram . html # range-Java . time . temporal . chronofield-