Java StringBuffer deleteCharAt() Method

Java PriorityBlockingQueue forEach() Method

Last Updated : 10 Jan, 2025

forEach() method of PriorityBlockingQueue in Java is used to iterate over all the elements in the PriorityBlockingQueue and perform a specific task. This method processes the elements sequentially in the order they are present in the queue. The PriorityBlockingQueue implements the Queue interface, which provides this functionality.

Example 1: The below Java program demonstrates the use of the forEach() method to iterate over and print each integer element in the PriorityBlockingQueue.

Java

// Iterate over the elements of the
// queue and print the integer
import java.util.concurrent.PriorityBlockingQueue;

class Geeks {
    public static void main(String[] args)
    {
        // Creating a PriorityBlockingQueue
        PriorityBlockingQueue q
            = new PriorityBlockingQueue();

        // use add() to insert elements in the queue
        q.add(20);
        q.add(10);
        q.add(30);

        // Using forEach to print each element of the queue
        System.out.println(
            "Elements in PriorityBlockingQueue:");
        q.forEach(e -> System.out.println(e));
    }
}

Output

Elements in PriorityBlockingQueue:
10
20
30

Syntax

void forEach(Consumer action)

Parameter: action - A consumer defines what action should be performed on each element.

Example 2: The below Java program demonstrates the use of forEach() method to iterate over and print each String element in the queue.

Java

// Iterate over the elements of the
// queue and print the string
import java.util.concurrent.PriorityBlockingQueue;

class Geeks {
    public static void main(String[] args)
    {
        // Creating a PriorityBlockingQueue
        PriorityBlockingQueue<String> q
            = new PriorityBlockingQueue<>();

        // use add() method to insert elements in the queue
        q.add("A");
        q.add("D");
        q.add("C");
        q.add("B");
        q.add("E");

        // Using forEach to print each element of the queue
        System.out.println(
            "Elements in PriorityBlockingQueue:");
        q.forEach(s -> { System.out.println(s); });
    }
}

Output

Elements in PriorityBlockingQueue:
A
B
C
D
E

Java StringBuffer deleteCharAt() Method

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