The java.util.concurrent.ConcurrentLinkedDeque.clear() method is an inbuilt method in Java which removes the elements in the Deque.
Syntax:
public void clear()
Parameters: The method do not accepts any parameter.
Return Value: The function does not return anything
Below programs illustrate the ConcurrentLinkedDeque.clear() method:
Program 1:
// Java Program to Demonstrate clear() // method of ConcurrentLinkedDeque import java.util.concurrent.*;
class GFG {
public static void main(String[] args)
{
// Creating an empty Deque
ConcurrentLinkedDeque<String> cld
= new ConcurrentLinkedDeque<String>();
// Add elements into the Deque
cld.add( "Welcome" );
cld.add( "To" );
cld.add( "Geeks" );
cld.add( "4" );
cld.add( "Geeks" );
// Displaying the Deque
System.out.println( "ConcurrentLinkedDeque: "
+ cld);
// Remove all elements of the Deque using clear()
cld.clear();
// Displaying message
System.out.println( "\nConcurrentLinkedDeque cleared\n" );
// Displaying the Deque
System.out.println( "ConcurrentLinkedDeque: "
+ cld);
}
} |
Output:
ConcurrentLinkedDeque: [Welcome, To, Geeks, 4, Geeks] ConcurrentLinkedDeque cleared ConcurrentLinkedDeque: []
Program 2:
// Java Program to Demonstrate clear() // method of ConcurrentLinkedDeque import java.util.concurrent.*;
class GFG {
public static void main(String[] args)
{
// Creating an empty Deque
ConcurrentLinkedDeque<Integer> cld
= new ConcurrentLinkedDeque<Integer>();
// Add elements into the Deque
cld.add( 10 );
cld.add( 20 );
cld.add( 30 );
cld.add( 40 );
cld.add( 50 );
// Displaying the Deque
System.out.println( "ConcurrentLinkedDeque: "
+ cld);
// Remove all elements of the Deque using clear()
cld.clear();
// Displaying message
System.out.println( "\nConcurrentLinkedDeque cleared\n" );
// Displaying the Deque
System.out.println( "ConcurrentLinkedDeque: "
+ cld);
}
} |
Output:
ConcurrentLinkedDeque: [10, 20, 30, 40, 50] ConcurrentLinkedDeque cleared ConcurrentLinkedDeque: []
Reference: https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/ConcurrentLinkedDeque.html#clear–
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