Question

I have created a Java class MyObject:

public class MyObject
{
    public final String s; 
    public final int i; 
    public final int j;
    ...
}

I want to create a List of this type, but I am getting a “Cannot instantiate the type List” error

private java.util.List<MyObject> myObjectss = new java.util.List<MyObject>();

I tried the solution in this question (4 vote answer) but I get a “The type List is not generic; it cannot be parameterized with arguments ” error…

Java Linked List How to create a node that holds a string and an int?

Answer 1

List is an interface and therefore cannot be instantiated. You could try:

private java.util.List<MyObject> myObjectss = new java.util.ArrayList<MyObject>();

ArrayList is a class that implements the List interface.

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Edit Just saw that you needed a LinkedList, try this:

private java.util.List<MyObject> myObjectss = new java.util.LinkedList<MyObject>();