Class TestException 1. public class TestException extends Exception { 2. } Class a： 1. public class a { 2. 3. public String sayHello（String name） throws TestException { 4. 5. if（name == null） { 6. throw new TestException（）； 7. } 8. 9. return “Hello “+ name； 10. } 11. 12. } A programmer wants to use this code in an application： 45. A a=new A（）； 46. System.out.println（a.sayHello（”John”））； Which two are true？（）
- A Class a will not compile.
- B Line 46 can throw the unchecked exception TestException.
- C Line 45 can throw the unchecked exception TestException.
- D Line 46 will compile if the enclosing method throws a TestException.
- E Line 46 will compile if enclosed in a try block， where TestException is caught.