Get null with the HashMap
Hi all,
I need a help with HashMap. I have a set of classes. In one of them I initialized the HashMap to put the key with the object in a method.
First, the attribute was:
private HashMap hm ;
Then, I did like this:
public void enqueue_Task(Poisson_output e) {
hm = new HashMap();
JobSpecifications t = new JobSpecifications();
t.setPoisson_output(e);
t.setDSpace();
t.setCpu();
t.setMemory();
hm.put(t.getPoisson_output().getSequence(), t);
////hm.putAll(hm);
q.enqueue(t);
}
Then, I wrote this method:
public HashMap getHash(){
return hm;
}
to call it in the other classes, so I will be able to use the HashMap with its values( keys and objects).
After that, and in another class, I initialized the HashMap again;
private HashMap e;
with this constructor:
public PoissonSimulation(int time) {
e = q.getHash();
}
And finally, I use this method to get the object with a specific key:
public JobSpecifications search(double key){
return (JobSpecifications) e.get(key);
}
============================
Thats it. But, the problem is that when I ran the last method I get a null value!
Any help!
