Data being overwritten in my LinkedList

Question

I have a linkedlist, called myHardware, consisting of different objects and linkedlist. I can add numerous objects, which is of type Component, and every time I add a new one no problem. It does no longer overwrite the old objects, which it did in the beginning. Now I add a LinkedList, myTemporaryPC, to the first LinkedList, no problem. But when I add myTemporaryPC again, this time with new data, the old data is overwritten.
what is the problem
I think it is some kind of missing new keyword, but I don't know where.
This is where I add the LinkedList
myHardware.addFirst(myTemporaryPC);     let me know if you need more code

Answer 1

So you must do this,
Component myTemporaryPC = new Component(); // new object
// add data to the object myTemporaryPC points to
myHardware.addFirst(myTemporaryPC); // store object
myTemporaryPC = new Component(); // another new object
// add data to the the new object myTemporaryPC points to
myHardware.addFirst(myTemporaryPC); // store new object
There seems to be a problem doing
Component myTemporaryPC = new Component();
// and
myTemporaryPC = new Component();since they both are linkedlists.
Or is it just me misunderstanding how to do as you say, i that case, could you be more specific?