複選題
163 
Which two code fragments, inserted independently at line 3, generate the output 4247? (choose two.) 
(A) 
(B) 
(C) 
(D) 
(E) 

159 Which code, inserted at line 14, sets the value of b to 314.159,26? (A) b = nf.parse(input); (B) b = nf.format(input); (C) b = nf.equals(input); (D) b = nf.parseObject(input);

160 Which code fragment, inserted at line 24, outputs "123abc 123abc"? (A) sb1.append("abc"); s1.append("abc"); (B) sb1.append("abc"); s1.concat("abc"); (C) sb1.concat("abc"); s1.append("abc"); (D) sb1.concat("abc"); s1.concat("abc"); (E) sb1.append("abc"); s1 = s1.concat("abc"); (AB) sb1.concat("abc"); s1 = s1.concat("abc"); (AC) sb1.append("abc"); s1 = s1 + s1.concat("abc"); (AD) sb1.concat("abc"); s1 = s1 + s1.concat("abc");

161 What is the result? (A) The value "4" is printed at the command line. (B) Compilation fails because of an error in line 5. (C) Compilation fails because of an error in line 9. (D) A NullPointerException occurs at runtime. (E) A NumberFormatException occurs at runtime. (AB) An IllegalStateException occurs at runtime.

162 What is the result? (A) three (B) other (C) An exception is thrown at runtime. (D) Compilation fails because of an error on line 12. (E) Compilation fails because of an error on line 13. (AB) Compilation fails because of an error on line 15.

164  What outputs the current locale's country name and the appropriate version of d's date? (A) (B) (C) (D) 

165 Which code fragment, inserted at line 23, allows the code to compile? (A) df = new DateFormat(); (B) df = Date.getFormat(); (C) df = date.getFormat(); (D) df = DateFormat.getFormat(); (E) df = DateFormat.getInstance();

166 What is the result? (A) 7 (B) 49 (C) 343 (D) Compilation fails. (E) An exception is thrown at runtime.

167 Which regular expression, inserted at line 12, correctly splits test into "Test A", "Test B", and "Test C"? (A) String regex = ""; (B) String regex = " "; (C) String regex = ".*"; (D) String regex = "\s"; (E) String regex = "\.\s*"; (AB) String regex = "\w[.] +";

168 What is the result when method testIfA is invoked? (A) True (B) Not true (C) An exception is thrown at runtime. (D) Compilation fails because of an error at line 12. (E) Compilation fails because of an error at line 19.

169 Which two statements are true about the result if the default locale is Locale.US? (Choose two.)  1. The value of b is 2.  2. The value of a is 3.14.  3. The value of b is 2.00.  4. The value of a is 3.141.  5. The value of a is 3.1415.  6. The value of a is 3.1416.  7. The value of b is 2.0000. (A) 13 (B) 24 (C) 47 (D) 36