java.util.PriorityQueue.toArray() Method

Quiz

Description

The toArray() method is used to return an array containing all of the elements in this queue.

Declaration

Following is the declaration for java.util.PriorityQueue.toArray() method.

public Object[] toArray()

Parameters

Return Value

The method call returns an array containing all of the elements in this queue.

Exception

Example

The following example shows the usage of java.util.PriorityQueue.toArray()

Open Compiler

package com.tutorialspoint;
import java.util.PriorityQueue;

public class PriorityQueueDemo {
   public static void main(String args[]) {

      // create priority queue
      PriorityQueue < Integer >  prq = new PriorityQueue < Integer > (); 

      // insert values in the queue
      prq.add(6);  
      prq.add(9);
      prq.add(5);
      prq.add(64);
      prq.add(6);

      System.out.println("Priority queue values are: "+ prq);

      // get objects from the queue
      Object[] arr = prq.toArray(); 
     
      System.out.println("Value in array: ");

      for ( int i = 0; i<arr.length; i++ ) {  
         System.out.println("Value: " + arr[i].toString()) ; 
      }
   }
}

Let us compile and run the above program, this will produce the following result.

Priority queue values are: [5, 6, 6, 64, 9]
Value in array: 
Value: 5
Value: 6
Value: 6
Value: 64
Value: 9

java_util_priorityqueue.htm

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