LinkedBlockingDeque clear() method in Java
Last Updated :
14 Sep, 2018
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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:
Java
Java
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:
Program 2:
Linked Blocking Deque: [7855642, 35658786, 5278367, 74381793] Linked Blocking Deque: []
// Java Program Demonstrate clear()
// method of LinkedBlockingDeque
// when the list contains characters
import 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:
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/LinkedBlockingDeque.html#clear()
Linked Blocking Deque: [1, 2, 3, 4] Linked Blocking Deque: []
