Java Collection, PriorityQueue Exercises: Insert a given element into a priority queue
Java Collection, PriorityQueue Exercises: Exercise-4 with Solution
Write a Java program to insert a given element into a priority queue.
Sample Solution:-
Java Code:
import java.util.PriorityQueue;
public class Example4 {
public static void main(String[] args) {
// Create Priority Queue
PriorityQueue<String> pq1 = new PriorityQueue<String>();
// use add() method to add values in the Priority Queue
pq1.add("Red");
pq1.add("Green");
pq1.add("Black");
pq1.add("White");
System.out.println("Original Priority Queue: "+pq1);
// Inserts the specified element into this priority queue.
pq1.offer("Blue");
System.out.println("The New Priority Queue: " + pq1);
}
}
Sample Output:
Original Priority Queue: [Black, Red, Green, White] The New Priority Queue: [Black, Blue, Green, White, Red]
Java Code Editor:
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Previous: Add all the elements of a priority queue to another priority queue.
Next:Remove all the elements from a priority queue.
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
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