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单选题
1. public class a {  2. public void method1() {  3. try {  4. B b=new b();  5. b.method2();  6. // more code here  7. } catch (TestException te) {  8. throw new RuntimeException(te);  9. }  10. }  11. }  1. public class b {  2. public void method2() throws TestException {  3. // more code here  4. }  5. }  1. public class TestException extends Exception {  2. }  Given:  31. public void method() {  32. A a=new a();  33. a.method1();  34. }  Which is true if a TestException is thrown on line 3 of class b?()
A

 Line 33 must be called within a try block.

B

 The exception thrown by method1 in class a is not required to be caught.

C

 The method declared on line 31 must be declared to throw a RuntimeException.

D

 On line 5 of class a, the call to method2 of class b does not need to be placed in a try/catch block.


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考题 单选题Given  1.  public class Foo {  2.  public static void main (String [] args) }  3.  try { return;}  4.  finally { Syste.out.printIn (“Finally”);}  5. }  6. }   What is the result( )?A  The program runs and prints nothing.B  The program runs and prints “Finally”.C  The code comiles. But an exception is thrown at runtime.D  The code will not compile because the catch block is missing.

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考题 填空题1. public class test {  2. public static string output = “”  3.    4. public static void foo(int i) {  5. try {  6. if(i= =1) {  7. throw new Exception ();  8. }  9. output += “1”;  10.}  11. catch(Exception e)  {  12. output += “2”;  13. return;  14.}  15. finally (  16. output += “3”;  17. )  18. output += “4”;  19. } 20.    21. public static void main (string args[])  (  22. foo(0);  23. foo(1);  24.    25. )  26. } What is the value of the variable output at line 24?()