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Update pizza.java #9

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Update pizza.java #9

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parambirs
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Program to interfaces, not implementations.

Program to interfaces, not implementations.

abstract public class Pizza {
String name;
String dough;
String sauce;
ArrayList<String> toppings = new ArrayList<String>();
List<String> toppings = new ArrayList<String>();

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You can use a diamond operator:
List<String> toppings = new ArrayList<>();

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You are right @vaambival. The reason I didn't do this is because this may not be compatible with older Java versions.

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Looks good to me

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