LinkedBlockingDeque addAll() method in Java with Examples

The addAll() method of LinkedBlockingDeque appends all of the elements of the specified collection to the end of this deque.

Syntax:

public void addAll(Collection<E> c)

Parameters: This method accepts a mandatory parameter c which is the collection to be inserted in the end of the LinkedBlockingDeque.



Return Value: This method does not returns anything.

Exceptions: There are 2 exceptions present:-

  • IllegalStateException: if the collection cannot be added at this time due to capacity restrictions.
  • NullPointerException: if the specified collection is Null.

Below program illustrates the addAll() function of LinkedBlockingDeque class:

Example1:

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// Java Program Demonstrate addAll()
// 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(11);
        LBD.add(22);
        LBD.add(33);
        LBD.add(44);
  
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
  
        // Create object of ArrayList collection
        ArrayList<Integer> ArrLis
            = new ArrayList<Integer>();
  
        // Add number to ArrayList
        ArrLis.add(55);
        ArrLis.add(66);
        ArrLis.add(77);
        ArrLis.add(88);
  
        // Print ArrayList
        System.out.println("ArraList: "
                           + ArrLis);
  
        // Function addAll() adds all the elements of
        // ArrayList to Deque
        LBD.addAll(ArrLis);
  
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
    }
}

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Example 2:

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// Java Program Demonstrate addAll()
// 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<String> LBD
            = new LinkedBlockingDeque<String>();
  
        // Add elements to end of LinkedBlockingDeque
        LBD.add("GeeksforGeeks");
        LBD.add("Gfg");
        LBD.add("Geeks");
  
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
  
        // Create object of ArrayList collection
        ArrayList<String> ArrLis
            = new ArrayList<String>();
  
        // Add elements to ArrayList
        ArrLis.add("Computer");
        ArrLis.add("Science");
        ArrLis.add("Portal");
  
        // Print ArrayList
        System.out.println("ArraList: " + ArrLis);
  
        // Function addAll() adds all the elements of
        // ArrayList to Deque
        LBD.addAll(ArrLis);
  
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
    }
}

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Reference: https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/LinkedBlockingDeque.html#addAll-java.util.Collection-



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