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: []