计时单位是 Java 中基于日期的()方法，示例

原文:https://www . geesforgeks . org/chronounit-is dates-based-method-in-Java-with-examples/

计时单位枚举的是基于日期的()方法，用于检查该计时单位是否为日期单位。从天到纪元的所有时间单位都是基于日期的。

语法:

public boolean isDateBased()

参数:此方法不接受任何内容。

返回值:如果是日期单位，则该方法返回真，如果是时间单位，则返回假。

下面的程序说明了计时单位的方法: 程序 1:

// Java program to demonstrate
// ChronoUnit.isDateBased() method

import java.time.temporal.ChronoUnit;

public class GFG {
    public static void main(String[] args)
    {

        // get ChronoUnit
        ChronoUnit chronoUnit
            = ChronoUnit.valueOf("DECADES");

        // apply isDateBased()
        boolean isDateBasedAttribute
            = chronoUnit.isDateBased();

        // print
        System.out.println(
            "DECADES"
            + " is Date based attribute:"
            + isDateBasedAttribute);
    }
}

Output:

DECADES is Date based attribute:true

程序 2:

// Java program to demonstrate
// ChronoUnit.isDateBased() method

import java.time.temporal.ChronoUnit;

public class GFG {
    public static void main(String[] args)
    {

        // get ChronoUnit
        ChronoUnit chronoUnit
            = ChronoUnit.valueOf("MINUTES");

        // apply isDateBased()
        boolean isDateBasedAttribute
            = chronoUnit.isDateBased();

        // print
        System.out.println(
            "MINUTES"
            + " is Date based attribute:"
            + isDateBasedAttribute);
    }
}

Output:

MINUTES is Date based attribute:false

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/time/temporal/chronounit . html # isDateBased()

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