Java: Convert a Priority Queue elements to a string representation

Last update on May 22 2025 13:15:33 (UTC/GMT +8 hours)

11. Convert PriorityQueue to String

Write a Java program to convert a Priority Queue element to string representations.

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
          pq1.add("Red");
          pq1.add("Green");
          pq1.add("Black");
          pq1.add("White");
    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]

For more Practice: Solve these Related Problems:

Write a Java program to map each element of a PriorityQueue to its string representation and join them into a single comma-separated string.
Write a Java program to use Java streams to convert a PriorityQueue's elements to strings and collect them into an ArrayList.
Write a Java program to iterate over a PriorityQueue and build a string representation of its elements using StringBuilder.
Write a Java program to convert a PriorityQueue to a string that displays each element along with its natural order ranking.

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Java Code Editor:

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