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Java Code Walkthrough #45
Generic Wrapper Describe Method
📄 Code
Read carefully — what does this print?1class Wrapper<T> {2 private T data;34 public Wrapper(T data) {5 this.data = data;6 }78 public String describe() {9 return "Holds: " + data;10 }11}1213public class Main {14 public static void main(String[] args) {15 Wrapper<Integer> w1 = new Wrapper<>(99);16 Wrapper<Boolean> w2 = new Wrapper<>(true);1718 System.out.println(w1.describe());19 System.out.println(w2.describe());20 }21}