In java netbeans, write code for simple versions of the following abstractions: All the operations of each of the abstractions must be implemented and executed interactively. You would need to execute the list function/method of each abstraction after each operation to show the change.

a stack, implemented as a linked list. {create(), push(item), pop(), peek(), empty(), search(item()), isEmpy(), list()}

a priority queue, implemented as a skip list or a partially ordered tree embedded in an array. {create(), add(element), remove(element), peek(), size(), clear(), contains(element), list()}

a dictionary (mapping), implemented as a hash table. {get(key), put(key,value), containsKey(key), removeKey(key), keys(), size(), list()}