incompatible types : java.lang.Object cannot be converted to T

Question

Here is my code:

package datastructures;

import java.util.Iterator;

public class Stack{
    private class Node{
        T data;
        N         


        

Answer 1

(For Java 8) You can use a typed variable with the diamond operator:

private Node newNode(T data) {
    Node new_node = new Node<>();
    new_node.data = data;
    new_node.next = null;
    return new_node;
}

Otherwise the generic is initalized as Object and therefore the error is shown.