adding Objects to its Array

[Sam Nanda]

How can I add an Object to its Array??? When I create an instance of a Class and try to assign it to its array it gives me a Null Pointer Exceptions .... the line below in BOLD is where I get the exception.

Is this legal in Java??? if Yes, why am I getting a Null Pointer Exception, or is there something else I need to do ???

 
 
private Authorization authorization[];
  
public Authorizations() {}
public Authorizations(List l1, List l2) {
for(int i=0; i < l1.size(); i++) {
String object_type = (String)l1.get(i);
String function_name = (String)l2.get(i);
Authorization a =  new Authorization(object_type,function_name);
authorization[i] = a; [B]<<<<---------[/B]
 
}
 
}
 
 

All suggestions are greatly accepted and thanked for.

[Mark Van Tuyl]

You have declared the array but never instantiated it with the new keyword.

You need to do something like this:

private Authorization authorizaition[] = new Authorization[42];

[Sam Nanda]

Originally posted by Mark Van Tuyl:
You have declared the array but never instantiated it with the new keyword.

You need to do something like this:

private Authorization authorizaition[] = new Authorization[42];

Thanks Mark , it helps .... Appreciate it.

[Ernest Friedman-Hill]

This line:

private Authorization authorization[];

declares an array variable, but does not create the physical array object; the variable remains null. You have to actually create the array: for example,

private Authorization authorization[] = new Authorization[NUMBER_OF_AUTH];

Finally; please stop starting new threads regarding this single problem. Any followup should go in this original thread. Thanks for helping keep the Saloon neat and clean!