Null pointer with array

[kgibson80]

Please help! I'm new to Java and have done the following:

Created an array to hold 100 records.
Created 5 records for the array (index 0, 1, 2, 3, 4)

Now I'm trying to use a for loop to have a write output of the array values and I'm getting a NULL pointer exception.

Any ideas???

[Phaelax]

show us your code you're using.

[Kram]

ill assume that each object in the array is in fact an object rather than a primative data type, if you use a for loop to go through each one and you only have filled up 5 out of 100 then the 6th one will be null, you have to do a check on each array object like so:

for(int count=0;count<=array.length();count++){
    if(array[count] != null){
        //do you thing here
    }
}

this will check for null on each item in the array

[kgibson80]

Thanks Kram, that worked!

I was under the impression that those after the first five (that I did not set) were assigned the value from the default constructor of my object.

[Kram]

cool glad to help, i often forget to do null pointer checking, but when working with object oriented programming, its a must do

[mikeBarr81]

Only primitives get set to default values. Objects all get set to null.