LinkedBlockingDeque forEach() method in Java with Examples

Last Updated : 19 Mar, 2019

The forEach() method of LinkedBlockingDeque performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception. Syntax:

  public void forEach(Consumer<E> action)

Parameters: This method takes a parameter action which represents the action to be performed for each element. Return Value: This method does not returns anything. Exceptions: This method throws NullPointerException if the specified action is null. Below program illustrates the forEach() function of LinkedBlockingDeque class: Example:

Java

// Java Program Demonstrate forEach() // 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);         LBD.add(55);         LBD.add(66);         LBD.add(77);          // print deque         System.out.println("Linked Blocking Deque: "                            + LBD);          System.out.println("Traversing this Deque: ");          // Traverse this queue using forEach() method         LBD.forEach((n) -> System.out.println(n));     } }

Output:

  Linked Blocking Deque: [11, 22, 33, 44, 55, 66, 77]  Traversing this Deque:   11  22  33  44  55  66  77

Example: 2

Java

// Java Program Demonstrate forEach() // 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");         LBD.add("Computer");         LBD.add("Science");         LBD.add("Portal");          // print deque         System.out.println("Linked Blocking Deque: "                            + LBD);          System.out.println("Traversing this deque: ");          // Traverse this deque using forEach() method         LBD.forEach((n) -> System.out.println(n));     } }

Output:

  Linked Blocking Deque: [GeeksforGeeks, Gfg, Geeks, Computer, Science, Portal]  Traversing this deque:   GeeksforGeeks  Gfg  Geeks  Computer  Science  Portal

Reference: https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/LinkedBlockingDeque.html#forEach-java.util.function.Consumer-

LinkedBlockingDeque forEach() method in Java with Examples

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LinkedBlockingDeque forEach() method in Java with Examples

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