CODEWITHSUNDEEP
javagenerics
余星佑
余星佑

Reputation: 71

How to make linked stack generics?

I am doing lab, I viewed a lot of Java Generics example, but I cannot understand it. My goal is achieving Linked Stack. It have 2 files: IntStack.java and IntNode.java. The part of these code is:

public class IntNode {
    private int element = 0;
    private IntNode next = null;
    public IntNode(final int data, final IntNode next) {
        this.element = data;
        this.next = next;
}

public class IntStack {
private IntNode top = null;
public boolean isEmpty() {
    return this.top == null;
}

How to convert them to generics type? I know it should use <T>,and I write these code, it is correct or not?

public class Node<T> {
    private T element;
    private Node<T> next = null;
    public Node(final T data,final Node next) {
        this.element = data;
        this.next = next;
    }
}

Upvotes: 1

Views: 68

Answers (1)

Eran
Eran

Reputation: 393811

You are close. The Node parameter of the Node constructor should also be parameterized:

public class Node<T> {   
    private T element;
    private Node<T> next = null;
    public Node(final T data,final Node<T> next) {
        this.element = data;
        this.next = next;
    }
}

Upvotes: 1

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