AbstractSequentialList clear() method in Java with Example

The clear() method of AbstractSequentialList in Java is used to remove all the elements from a list. The list will be empty after this call returns.

Syntax:

public void clear()

Parameters: This function has no parameters.

Returns: The method does not return any value. It removes all the elements in the list and makes it empty.

Below examples illustrates the AbstractSequentialList.clear() method:

Example 1:

// Java code to demonstrate the working of
// clear() 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);

        // list initially
        System.out.println("The list initially: "
                           + arr);

        // clear function used
        arr.clear();

        // list after clearing all elements
        System.out.println("The list after "
                           + "using clear() method: "
                           + arr);
    }
}

Output:

The list initially: [1, 2, 3, 4]
The list after using clear() method: []

Example 2:

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

import java.util.*;

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

        // using add() to initialize values
        // [Geeks, For, ForGeeks, GeeksForGeeks]
        arr.add("Geeks");
        arr.add("For");
        arr.add("ForGeeks");
        arr.add("GeeksForGeeks");

        // list initially
        System.out.println("The list initially: "
                           + arr);

        // clear function used
        arr.clear();

        // list after clearing all elements
        System.out.println("The list after "
                           + "using clear() method: "
                           + arr);
    }
}

Output:

The list initially: [Geeks, For, ForGeeks, GeeksForGeeks]
The list after using clear() method: []