Can Java object arrays initialize elements as non-null values?

Question

I\'m pretty new at Java and I\'m having a tough time figuring out how to fix this null pointer exception that has been troubling me.

I know where the problem occurs

Answer 1

Your entire array is null ! remember , arrays are never automatically initialized in java, unless they are arrays of ints,floats,doubles, or booleans.

Scanner input = new Scanner//System.in.Scanner;

Account[] atm = new Account[10];

for (int i = 0; i < 10; i++){
    **atm[i] = new Account();**
    atm[i].setId(i);
    atm[i].setBalance(100.00);
}

When you're declaring arrays that hold objects, read it as, "I'm creating an array that will hold 'x' objects." (correct), and then proceed to instantiate those objects

...as opposed to...

"I'm creating an array with 'x' objects in it." (incorrect) since there aren't any objects in there yet because they haven't been created.