137 

What is the result?
(A) X, followed by an Exception.
(B) No output, and an Exception is thrown.
(C) Compilation fails due to an error on line 14.
(D) Compilation fails due to an error on line 16.
(E) Compilation fails due to an error on line 17. 

(AB) X, followed by an Exception, followed by B.

133 What is the result? (A) Compilation fails. (B) ClassC is displayed. (C) The code runs with no output. (D) An exception is thrown at runtime.

134 What is the result? (A) B (B) B, followed by an Exception. (C) Compilation fails due to an error on line 9. (D) Compilation fails due to an error on line 14. (E) An Exception is thrown with no other output.

135 Which statement is true if a ResourceException is thrown on line 86? (A) Line 92 will not execute. (B) The connection will not be retrieved in line 85. (C) The resource connection will not be closed on line 88. (D) The enclosing method will throw an exception to its caller.

136 What is the result? (A) test (B) Exception (C) Compilation fails. (D) NullPointerException

138 Which two code fragments are most likely to cause a StackOverflowError? (Choose two.)  1. int[] x = {1, 2, 3, 4, 5}; for(int y=0; y＜6; y++) System.out.println(x[y]);   2. static int[] x = {7, 6, 54}; static{x[1] = 8; x[4] = 3;}  3. for(int y=10; y＜10; y++) doStuff(y);  4. void doOne(int x){doTwo(x);} void doTwo(int y){doThree(y);} void doThree(int z){doTwo(z);}  5. for(int x=0; x＜1000000000; x++) doStuff(x);  6. void counter(int i){counter(++i);} (A) 12 (B) 46 (C) 23 (D) 156

139 What, inserted at line 12, is the appropriate way to handle a null value?  (A) assert value == null; (B) assert value != null : "value is null"; (C) (D) 

複選題140 Which two statements are true if a NullPointerException is thrown on line 3 of class C? (Choose two.) (A) The application will crash. (B) The code on line 29 will be executed. (C) The code on line 5 of class A will execute. (D) The code on line 5 of class B will execute. (E) The exception will be propagated back to line 27.

141 What is the result? (A) Exception (B) A, B, Exception (C) Compilation fails because of an error in line 20. (D) Compilation fails because of an error in line 14. (E) A NullPointerException is thrown at runtime.

142 What is the result? (A) restore 400 (B) restore 403 (C) restore 453 (D) Compilation fails. (E) An exception is thrown at runtime.

144 Which capability exists only in java.io.BufferedWriter? (A) Closing an open stream. (B) Flushing an open stream. (C) Writing to an open stream. (D) Writing a line separator to an open stream.