PriorityQueue add() Method in Java (original) (raw)

Last Updated : 09 Aug, 2019

The Java.util.PriorityQueue.add() method in Java is used to add a specific element into a PriorityQueue. This method internally just calls the Java.util.PriorityQueue.offer() method with the value passed to it. So, it exactly works like offer() method.Syntax:

Priority_Queue.add(Object element)

Parameters: The parameter element is of the type PriorityQueue and refers to the element to be added to the Queue.Return Value: The function returns True if the element is successfully added to the PriorityQueue . Below programs illustrate the Java.util.PriorityQueue.add() method:Program 1: Adding String elements into the Queue.

Java `

// Java code to illustrate add() import java.util.PriorityQueue;

public class PriorityQueueDemo { public static void main(String args[]) { // Creating an empty PriorityQueue PriorityQueue queue = new PriorityQueue();

    // Use add() method to add elements into the Queue
    queue.add("Welcome");
    queue.add("To");
    queue.add("Geeks");
    queue.add("4");
    queue.add("Geeks");

    // Displaying the PriorityQueue
    System.out.println("PriorityQueue: " + queue);
}

}

`

Output:

PriorityQueue: [4, Geeks, To, Welcome, Geeks]

Program 2: Adding Integer elements into the Queue.

Java `

// Java code to illustrate add() import java.util.*;

public class PriorityQueueDemo { public static void main(String args[]) { // Creating an empty PriorityQueue PriorityQueue queue = new PriorityQueue();

    // Use add() method to add elements into the Queue
    queue.add(10);
    queue.add(15);
    queue.add(30);
    queue.add(20);
    queue.add(5);

    // Displaying the PriorityQueue
    System.out.println("PriorityQueue: " + queue);
}

}

`

Output:

PriorityQueue: [5, 10, 30, 20, 15]