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auberonedu
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Jan 6, 2025
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auberonedu
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Nice job! Maybe we will do more 🙂
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| public static void main(String[] args) { | ||
| // Create an empty ArrayList of Strings and assign it to a variable of type List | ||
| ArrayList<String> List = new ArrayList<String>(); |
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Remember to use interface types when you don't need to concrete implementation specified:
List<String> newList = new ArrayList<>();
| // Create a HashMap with String keys and Integer values and | ||
| // assign it to a variable of type Map | ||
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| HashMap<String, Integer> map = new HashMap<String, Integer>(); |
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Remember to use interface types (Map)
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| // Create an ArrayList of Strings and assign it to a variable | ||
| ArrayList<String> list = new ArrayList<String>(); |
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Remember to use interface types (List)
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We should do more of these every week!