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: []
