Java 中的等时 getId()方法，示例

原文:https://www . geesforgeks . org/isochronomics-getid-method-in-Java-with-example/

Java . time . chrono . isochronology 类的 getId() 方法用于检索 getId()方法被撤销的特定年表的标识状态。

语法:

public String getId()

参数:此方法不接受任何参数作为参数。

返回值:该方法返回 getId()方法被撤销的特定年表的标识状态。

以下是说明 getId() 方法的例子:

例 1:

// Java program to demonstrate
// getId() method

import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;

public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing
        // LocalDate Object
        LocalDate hidate = LocalDate.now();

        // getting IsoChronology
        // used in LocalDate
        IsoChronology crono
            = hidate.getChronology();

        // getting id of this Chronology
        // by using getId() method
        String id = crono.getId();

        // display the result
        System.out.println("id : " + id);
    }
}

输出:

id : ISO

例 2:

// Java program to demonstrate
// getId() method

import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;

public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing
        // LocalDate Object
        LocalDate hidate = LocalDate.now(Clock.systemDefaultZone());

        // getting IsoChronology
        // used in LocalDate
        IsoChronology crono
            = hidate.getChronology();

        // getting id of this Chronology
        // by using getId() method
        String id = crono.getId();

        // display the result
        System.out.println("id : " + id);
    }
}

输出:

id : ISO

参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/chrono/isochronomics . html # Getid–

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