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auberonedu
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Jan 13, 2025
auberonedu
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Nice job! In the future, please make more frequent commits. We want a commit every time we've got a small, meaningful set of changes. For this assignment, that would mean probably at least one commit per practice file. Thanks!
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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<>(); |
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Remember to use interface types where appropriate (Map)
| // 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<>(); |
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Remember to use interface types where appropriate (Map)
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| for (String string : map.keySet()) { | ||
| System.out.println(string + "=" + map.get(string)); | ||
| } |
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This works! Can you search to find another way to iterate over the entries directly, so you you don't need to repeatedly call get?
| public class SetPractice { | ||
| public static void main(String[] args) { | ||
| // Create a HashSet of Strings and assign it to a variable of type Set | ||
| HashSet<String> set = new HashSet<String>(); |
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Remember to use interface types (Set)
| System.out.println(string.charAt(i)); | ||
| } | ||
| // Create an ArrayList of Strings and assign it to a variable | ||
| ArrayList<String> stringArray = new ArrayList<>(); |
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