Java Collection, PriorityQueue Exercises: Convert a Priority Queue elements to a string representation

Java Collection, PriorityQueue Exercises: Exercise-11 with Solution

Write a Java program to convert a Priority Queue elements to a string representation.

Sample Solution:-

Java Code:

import java.util.*;
  public class Example11 {
  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
    System.out.println("Original Priority Queue: "+pq1);
   //Convert Priority Queue to a string representation
   String str1;
   str1 = pq1.toString();
   System.out.println("String representation of the Priority Queue: "+str1);    

Sample Output:

Original Priority Queue: [Black, Red, Green, White]                    
String representation of the Priority Queue: [Black, Red, Green, White]

Java Code Editor:

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Java: Tips of the Day


Converts to enum to Map where key is the name and value is Enum itself.

public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) {
    return Arrays.stream(enumClass.getEnumConstants())
            .collect(Collectors.toMap(Enum::name, Function.identity()));

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