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: []
