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Java Collection, PriorityQueue Exercises: Add all the elements of a priority queue to another priority queue

Java Collection, PriorityQueue Exercises: Exercise-3 with Solution

Write a Java program to add all the elements of a priority queue to another priority queue.

Sample Solution:-

Java Code:

import java.util.PriorityQueue;
public class Exercise3 {
public static void main(String[] args) {
  PriorityQueue<String> queue1 = new PriorityQueue<String>();  
  queue1.add("Red");
  queue1.add("Green");
  queue1.add("Orange");
  System.out.println("Priority Queue1: "+queue1);
  PriorityQueue<String> queue2 = new PriorityQueue<String>();  
  queue2.add("Pink");
  queue2.add("White");
  queue2.add("Black");
  System.out.println("Priority Queue2: "+queue2);
    // adding queue2 to queue1
   queue1.addAll(queue2);
   System.out.println("New Priority Queue1: "+queue1);
 }
}

Sample Output:

Priority Queue1: [Green, Red, Orange]                                  
Priority Queue2: [Black, White, Pink]                                  
New Priority Queue1: [Black, Green, Orange, Red, White, Pink]

Java Code Editor:

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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