The clear() method of LinkedBlockingDeque erases all the elements that are present in the LinkedBlockingDeque container. The container becomes empty after the function is called.
Syntax:
public void clear()
Parameters: This method does not accepts any parameters
Returns: This method does not returns anything.
Below programs illustrate clear() method of LinkedBlockingDeque:
Program 1:
// Java Program Demonstrate clear()// method of LinkedBlockingDeque import java.util.concurrent.LinkedBlockingDeque;import java.util.*; public class GFG { public static void main(String[] args) throws IllegalStateException { // create object of LinkedBlockingDeque LinkedBlockingDeque<Integer> LBD = new LinkedBlockingDeque<Integer>(); // Add numbers to end of LinkedBlockingDeque LBD.add(7855642); LBD.add(35658786); LBD.add(5278367); LBD.add(74381793); // before using erase() function System.out.println("Linked Blocking Deque: " + LBD); LBD.clear(); // after using erase() function System.out.println("Linked Blocking Deque: " + LBD); }} |
Output:
Linked Blocking Deque: [7855642, 35658786, 5278367, 74381793] Linked Blocking Deque: []
Program 2:
// Java Program Demonstrate clear()// method of LinkedBlockingDeque// when the list contains charactersimport java.util.concurrent.LinkedBlockingDeque;import java.util.*; public class GFG { public static void main(String[] args) throws IllegalStateException { // create object of LinkedBlockingDeque LinkedBlockingDeque<String> LBD = new LinkedBlockingDeque<String>(); // Add numbers to end of LinkedBlockingDeque LBD.add("1"); LBD.add("2"); LBD.add("3"); LBD.add("4"); // before using erase() function System.out.println("Linked Blocking Deque: " + LBD); LBD.clear(); // after using erase() function System.out.println("Linked Blocking Deque: " + LBD); }} |
Output:
Linked Blocking Deque: [1, 2, 3, 4] Linked Blocking Deque: []
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/LinkedBlockingDeque.html#clear()