OOP-JAVA Practical 24

• PPS(C)
• JAvA

• Aim: Define MYPriorityQueue class that extends Priority Queue to implement the Cloneable Interface and implement the clone () method to clone a priority queue.
• Code:

  import java.util.PriorityQueue;
  public class practical24 {
      public static void main(String[] args) {
          MyPriorityQueue<String> queue= new MyPriorityQueue<>();
          queue.add("ABC");
          queue.add("PQR");
          queue.add("MNO");
          queue.add("XYZ");
          System.out.println("Queue: \n"+queue);
          try {
              MyPriorityQueue<String> queue1=(queue.clone());
              System.out.println("After Cloning to another Queue:");
              System.out.println(queue1);
          } catch (CloneNotSupportedException e) {
              System.out.println("Error");
          }
      }
      public static class MyPriorityQueue<E> extends PriorityQueue<E> implements Cloneable{
          public MyPriorityQueue<E> clone() throws  CloneNotSupportedException{
              MyPriorityQueue<E> clone= new MyPriorityQueue<>();
              this.forEach(clone::offer);
              return clone;
          }
      }
  }

• Output:
  

Practical 23 Practical 25