AbstractSequentialList isEmpty() method in Java with Example

The isEmpty() method of AbstractSequentialList in Java is used to check whether this AbstractSequentialList is empty or not. It returns an boolean value stating the same.

Syntax:

public boolean isEmpty()

Parameters: This function has no parameters.

Returns: The method returns an boolean value which states that this instance of the AbstractSequentialList is empty or not.

Below examples illustrates the AbstractSequentialList.isEmpty() method:

Example 1:

// Java code to demonstrate the working of
// isEmpty() method in AbstractSequentialList

import java.util.*;

public class GFG {
    public static void main(String[] args)
    {
        // creating an AbstractSequentialList
        AbstractSequentialList<Integer> arr
            = new LinkedList<Integer>();

        // using add() to initialize values
        // [1, 2, 3, 4]
        arr.add(1);
        arr.add(2);
        arr.add(3);
        arr.add(4);

        // print AbstractSequentialList
        System.out.println("AbstractSequentialList: "
                           + arr);

        // Check if AbstractSequentialList is empty
        // using isEmpty() value
        System.out.println("Is AbstractSequentialList empty? "
                           + arr.isEmpty());
    }
}

Output:

AbstractSequentialList: [1, 2, 3, 4]
Is AbstractSequentialList empty? false

Example 2:

// Java code to demonstrate the working of
// isEmpty() method in AbstractSequentialList

import java.util.*;

public class GFG {
    public static void main(String[] args)
    {
        // creating an AbstractSequentialList
        AbstractSequentialList<String> arr
            = new LinkedList<String>();

        // print AbstractSequentialList
        System.out.println("AbstractSequentialList: "
                           + arr);

        // Check if AbstractSequentialList is empty
        // using isEmpty() value
        System.out.println("Is AbstractSequentialList empty? "
                           + arr.isEmpty());
    }
}

Output:

AbstractSequentialList: []
Is AbstractSequentialList empty? true