How to dynamically create class objects with serial naming?

Question

Suppose I take an integer user input - 17. Now I want to create 17 "Node" class objects. And they'll be named like node1, node2, ..., node17.

How to achieve that?

Answer 1

Don't. What you are asking is a bad idea.

What you can do is add multiple new objects to an Array or Collection.
If you don't care about names an ArrayList<Node> will do the job.
If you do need names then make them keys in a HashMap<String, Node> or similar.

public List<Node> makeThisManyNodes(int count) {
    List<Node> nodes = new ArrayList<Node>();
    for (int i=0; i<count; i++) {
        nodes.add(new Node());
    }
    return nodes;
}

---

static final String NODE_BASE_NAME = "node_%d";

public Map<String, Node> makeThisManyNodes(int count) {
    Map<String, Node> nodes = new HashMap<String, Node>();
    String key;
    for (int i=0; i<count; i++) {
        key = String.format(NODE_BASE_NAME, i);
        nodes.put(key, new Node());
    }
    return nodes;
}