vector « Generic « Java Collection Q&A

1. Generic Vector in Java    stackoverflow.com

Why doesn't the add() method here compile?

Vector<?> vectorList[] = new Vector<?>[10];
vectorList[0].add("elem1");

2. How to return a Vector of inheriting classes?    stackoverflow.com

I'm looking for a solution to instantiate and return a Vector (or sth comparable) of classes. My attempt looks like this (Heritage extends SuperClass):

public Vector<? extends SuperClass> getAssignableClasses()
{
Vector<? extends SuperClass> out = ...

3. Java - multidimensional array of vectors of generic type    stackoverflow.com

Imagine, if you will, a 10x10x10 cube made out of 1x1x1 bricks. Each brick must be accessable by an x,y,z coordinate. For each brick I also need to store a list ...

4. Creating a Vector of Objects in Java    stackoverflow.com

Is the following valid in Java:

public Vector <Object> objVector = new Vector <Object>(50);

5. java generics problem when converting from array to vector    stackoverflow.com

Why is this not allowed? arr is a double[].

Vector<Double> v = new Vector<Double>(Arrays.asList(arr));

6. problem with vector of vectors(generics)    coderanch.com

Hello .i want to change my old java code with generics.is any body that knows how can i use Vector of vectors in this code?please help!!! // old Vector queues[] = new Vector[2]; Vector queues[] = new Vector[2] ; //old queues[0] = new Vector(); //old queues[1] = new Vector(); queues[0]= new Vector(); queues[1]= new Vector(); //old Vector retLevels = new Vector(); ...

7. Generics related warning in Vector add method    coderanch.com

Hi I am creating a Vector instance. And adding elements like vectorInstance.add("myData"); To the add method I am getting warning in my IDE (Eclipse) as following- Type safety: The method add(Object) belongs to the raw type Vector. References to generic type Vector should be parameterized I am using jdk1.6. All I know is this is generics related warning. What would be ...

8. Convert Vector to Generic Array Cast Exception    java-forums.org

9. Vector generics    forums.oracle.com

It's best to avoid mixing arrays and generics for exactly this reason. If you must, and want to get rid of the warning, you can use the @SuppressWarnings("unchecked") annotation on the method containing the offending code. Try to ensure that the method in question contains as little code as possible, as the annotation will suppress all generic casting warnings even if ...

10. Vector generics with Lotus Notes View    forums.oracle.com

11. Simple(?) problem involving generics and Vectors    forums.oracle.com

First off, I'd recommend using ArrayList rather than Vector. Vector is generally only used with legacy classes. ArrayList is its preferred replacement since the advent of the Collections Framework about 11 years ago. As for your error, you seem to have switched the order of your parameters vs. how the method is declared.

12. Slight confusion / problem with generics in relation to Vector