w3resource

Java Collection, PriorityQueue Exercises: Create a new priority queue, add some colors (string) and print out the elements of the priority queue

Java Collection, PriorityQueue Exercises: Exercise-1 with Solution

Write a Java program to create a new priority queue, add some colors (string) and print out the elements of the priority queue.

Sample Solution:-

Java Code:

import java.util.PriorityQueue;
public class Exercise1 {
  public static void main(String[] args) {
  PriorityQueue<String> queue=new PriorityQueue<String>();  
  queue.add("Red");
  queue.add("Green");
  queue.add("Orange");
  queue.add("White");
  queue.add("Black");
  System.out.println("Elements of the Priority Queue: ");
  System.out.println(queue);
 }
}

Sample Output:

Elements of the Priority Queue:                                        
[Black, Green, Orange, White, Red] 

Java Code Editor:

Contribute your code and comments through Disqus.

What is the difficulty level of this exercise?



Java: Tips of the Day

Choice between Float and Double:

Data type Bytes used Significant figures (decimal)
Float 4 7
Double 8 15

Double is often preferred over float in software where precision is important because of the following reasons:
Most processors take nearly the same amount of processing time to perform operations on Float and Double. Double offers far more precision in the same amount of computation time.

Ref: https://bit.ly/3oj7K2K