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Text lesson

isEmpty()

Example

Verify if a list is empty:

import java.util.LinkedList;

public class Main {
  public static void main(String[] args) {
    LinkedList<String> cars = new LinkedList<String>();

    System.out.println(cars.isEmpty());

    cars.add("Volvo");
    cars.add("BMW");
    cars.add("Ford");
    cars.add("Mazda");

    System.out.println(cars.isEmpty());
  }
}

Definition and Usage

TThe isEmpty() method returns true if a list contains no items; otherwise, it returns false.

Syntax

public boolean isEmpty()

Technical Details

Returns:

true if a list has no items and false otherwise.