LinkedTransferQueue forEach() method in Java with Examples

Last Updated : 08 Mar, 2019

The forEach() method of Java.util.concurrent.LinkedTransferQueue is an in-built function in Java which is used to traverse each element in this queue.

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 LinkedTransferQueue class:

Program 1:

// Java code to illustrate 
// forEach() method of LinkedTransferQueue 
  
import java.util.concurrent.LinkedTransferQueue; 
import java.util.*; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InterruptedException 
    { 
  
        // Create object of LinkedTransferQueue 
        LinkedTransferQueue<Integer> LTQ 
            = new LinkedTransferQueue<Integer>(); 
  
        // Add numbers to end of LinkedTransferQueue 
        // using add() method 
        LTQ.add(6); 
        LTQ.add(3); 
        LTQ.add(5); 
        LTQ.add(15); 
        LTQ.add(20); 
  
        // Prints the Deque 
        System.out.println("Linked Transfer Queue : "
                           + LTQ); 
  
        System.out.println("Traversing this Queue : "); 
  
        // Traverse this queue using forEach() method 
        LTQ.forEach((n) -> System.out.println(n)); 
    } 
} 

Output:

Linked Transfer Queue : [6, 3, 5, 15, 20]
Traversing this Queue : 
6
3
5
15
20

Program 2:

// Java code to illustrate 
// forEach() method of LinkedTransferQueue 
  
import java.util.concurrent.LinkedTransferQueue; 
import java.util.*; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InterruptedException 
    { 
  
        // Create object of LinkedTransferQueue 
        LinkedTransferQueue<String> LTQ 
            = new LinkedTransferQueue<String>(); 
  
        // Add numbers to end of LinkedTransferQueue 
        // using add() method 
        LTQ.add("GeeksforGeeks"); 
        LTQ.add("Geeks"); 
        LTQ.add("Computer Science"); 
        LTQ.add("Portal"); 
        LTQ.add("Gfg"); 
  
        // Prints the Deque 
        System.out.println("Linked Transfer Queue : "
                           + LTQ); 
        System.out.println("Traversing this Queue : "); 
  
        // Traverse this queue using forEach() method 
        LTQ.forEach((n) -> System.out.println(n)); 
    } 
} 

Output:

Linked Transfer Queue : [GeeksforGeeks, Geeks, Computer Science, Portal, Gfg]
Traversing this Queue : 
GeeksforGeeks
Geeks
Computer Science
Portal
Gfg

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

Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready.

My Personal Notes

Related Articles