How to call methods from an integer class to the main driver class

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Java

I am working on a circular linked list and I tried to implement an increment method, to do that I created another class that will extend my
circular class of integers as shown in the code. I implemented Increment list method and I have been trying to call it on my driver class but the method is not showing up what should I add into my driver class so the methods in MyCircular_Increment can be called. Also is my implementation correct, is there any changes I should do to incrementlist method.

What I have tried:

public class MyCircular_Increment extends MyCircularLinkedList<integer> {
     
    public MyCircular_Increment() {
        super();
    }
             
    public MyCircular_Increment(Integer[] objects) {
         super(objects);
    }
 
    public void IncrementList(Integer Value)
    {
        Node<integer>
        temp = current;
     
        if (current != null) {
            do {
                temp.element += Value;
                temp = temp.next;
            } while (temp != current);
        }
    }
}



// main class
public class TestMyCircularLinkedList {
	/* Main method */
	public static void main(String[] args) {
		// Create a list for strings
		 Pair 	p1 = new Pair(1,1),     p40 = new Pair(40,40),
				p5 = new Pair(5,5),   p10 = new Pair(10,10),  
              p50 = new Pair(50,50);

		 Pair[] plist1 = new Pair[] {p5, p40, p5, p10, p1, p50, p40, p10, p40, p10}; 
		
		 MyCircularLinkedList<pair> list1 = new MyCircularLinkedList<>(plist1);

         list1.IncrementList(p10);
		 System.out.println("List1 = " + list1);

    }
}