What will be the result of compiling and running the following code? (Assume that assertions are enabled at compile time as well as at runtime.) class Test { String f(int i) { switch (i) { case 0: return "A"; case 1: return "B"; case 2: return "C"; default: assert false; } } public static void main(String[] args) { Test t = new Test(); for (int i = 0; i < 4; i++) { System.out.print(t.f(i)); } } }