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Java Duration Class | isZero() Method with Example
Duration Class isZero() method: Here, we are going to learn about the isZero() method of Duration Class with its syntax and example.
Submitted by Preeti Jain, on May 16, 2020
Duration Class isZero() method
- isZero() method is available in java.time package.
- isZero() method is used to check whether this Duration object holds the value of length is 0 or not.
- isZero() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
- isZero() method does not throw an exception at the time of checking 0 lengths.
Syntax:
public boolean isZero();
Parameter(s):
Return value:
The return type of this method is boolean, it returns true when this Duration value length is 0 otherwise it returns false.
Example:
// Java program to demonstrate the example
// of boolean isZero() method of Duration
import java.time.*;
public class IsZeroOfDuration {
public static void main(String args[]) {
// Instantiates three Duration objects
Duration du1 = Duration.ofHours(-10);
Duration du2 = Duration.parse("P1DT2H20M");
Duration du3 = Duration.ofMinutes(0);
// Display du1, du2 and du3
System.out.println("du1: " + du1);
System.out.println("du2: " + du2);
System.out.println("du3: " + du3);
System.out.println();
// checks whether the value
// of this Duration (du1) is zero
// or not i.e here it returns false because
// the value of du1 is not 0
boolean status = du1.isZero();
// Display status
System.out.println("du1.isZero(): " + status);
// checks whether the value
// of this Duration (du2) is zero
// or not i.e here it returns false because
// the value of du2 is not 0
status = du2.isZero();
// Display status
System.out.println("du2.isZero(): " + status);
// checks whether the value
// of this Duration (du3) is zero
// or not i.e here it returns true because
// the value of du3 is 0
status = du3.isZero();
// Display status
System.out.println("du3.isZero(): " + status);
}
}
Output
du1: PT-10H
du2: PT26H20M
du3: PT0S
du1.isZero(): false
du2.isZero(): false
du3.isZero(): true