Practice ยท 1 of 3
Prove erasure to yourself
1. static boolean sameErasure() โ true iff new ArrayList<String>().getClass() is the
SAME object as new ArrayList<Integer>().getClass() (==).
2. static boolean arraysReified() โ true iff String[].class != Integer[].class.
3. static String classOfAList() โ return new ArrayList<String>().getClass().getName().
4. static String arrayStore() โ inside the method: Object[] objs = new String[1];
then attempt objs[0] = 42; catching the runtime failure; return exactly
"ArrayStoreException" (arrays enforce element type at runtime).
Difficulty: advanced
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