ChronoField isDateBased() method in Java with Examples

Last Updated : 29 Jan, 2020
The isDateBased() method of ChronoField enum is used to check that if this ChronoField represents a component of a date or not.ChronoField constants from day-of-week to era are date-based. Syntax: 
public boolean isDateBased()
Parameters: This method accepts nothing. Return value: This method returns true if it is a component of a date. Below programs illustrate the ChronoField.isDateBased() method: Program 1: Java 
// Java program to demonstrate
// ChronoField.isDateBased() method

import java.time.temporal.ChronoField;

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

        // get chronoField
        ChronoField chronoField
            = ChronoField.valueOf("HOUR_OF_DAY");

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

        // print
        System.out.println(
            "HOUR_OF_DAY"
            + " is Date based attribute:"
            + isDateBasedAttribute);
    }
}
Output: 
HOUR_OF_DAY is Date based attribute:false
Program 2: Java 
// Java program to demonstrate
// ChronoField.isDateBased() method

import java.time.temporal.ChronoField;

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

        // get chronoField
        ChronoField chronoField
            = ChronoField.valueOf("YEAR_OF_ERA");

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

        // print
        System.out.println("YEAR_OF_ERA"
                           + " is Date based attribute:"
                           + isDateBasedAttribute);
    }
}
Output: 
YEAR_OF_ERA is Date based attribute:true
References: https://docs.oracle.com/javase/10/docs/api/java/time/temporal/ChronoField.html#isDateBased()
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