A.HashMap B.HashTable C.LinkedHashMap D.TreeMap
class Birds { public static void main(String [] args) { try { throw new Exception(); } catch (Exception e) { try { throw new Exception(); } catch (Exception e2) { System.out.print("inner "); } System.out.print("middle "); } System.out.print("outer "); } } 結(jié)果為:()
A.inner B.inner outer C.middle outer D.inner middle outer
A..class B..c C..java D..txt