Enhanced For Loops - Java

Asked May 02 '21 at 23:28

Active May 02 '21 at 23:28

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I am trying to use a method for an object in an array in an enhanced for loop but it gives me an error message that says null. Here is my code:

Pet[] pets = new Pet[10];

pets[0] = new Pet("Buddy", 2);
pets[1] = new Pet("Cocoa", 2);
pets[2] = new Pet("Caramel", 1);
pets[3] = new Pet("Oreo", 1);

for (Pet p : pets)
{
  p.feed();
}

asked May 02 '21 at 23:28

Kaboom714

1

`pets[4]` to `pets[9]` are null because you haven't set them to anything. – khelwood May 02 '21 at 23:29
what should I do? Is there anything AI can do besides initialize them – Kaboom714 May 02 '21 at 23:33
Either make your array smaller so it doesn't contain null elements; or change to `if (p!=null) { p.feed(); }`. – khelwood May 02 '21 at 23:34
1

Or better yet, use an `ArrayList` – Hovercraft Full Of Eels May 02 '21 at 23:36

Enhanced For Loops - Java

0 Answers0