| 4.6.Questions |
| 4.6.1. | Object references can be converted in both method calls and assignments, and the rules are identical(True/False) | | |
| 4.6.2. | Answer: reference method call and assignment | | |
| 4.6.3. | What is the output(object and primitive type)? | | |
| 4.6.4. | Answer: object and primitive type | | |
| 4.6.5. | What is the output(object type conversion)? | | |
| 4.6.6. | Answer: object type conversion | | |
| 4.6.7. | What is the output(interface type)? | | |
| 4.6.8. | Answer: interface type | | |
| 4.6.9. | What is the output(boolean operator and short type)? | | |
| 4.6.10. | Answer: boolean operator and short type | | |
| 4.6.11. | What are the possible values of b in the following code? | | |
| 4.6.12. | Answer: casting between long and byte | | |
| 4.6.13. | What are the possible values of the result l in the following code? | | |
| 4.6.14. | Answer: assignment between byte and long | | |
| 4.6.15. | For the following hierarchy and code, Which of the following saveEvent calls would run without an exception? | | |
| 4.6.16. | Answers: exception hierarchy | | |
| 4.6.17. | Which of the following Java statements will compile and execute without error? | | |
| 4.6.18. | Answer: implement Runnable interface | | |
| 4.6.19. | What will happen when you try to compile and run this code? | | |
| 4.6.20. | Answer: interface casting | | |
| 4.6.21. | What will happen when you call this method with int primitives as in the following fragment? | | |
| 4.6.22. | Answer: method overloading | | |
| 4.6.23. | Which of the following Java code fragments compiles and executes without error? | | |
| 4.6.24. | Answer: interface type casting | | |
| 4.6.25. | What will be the result of trying to compile the following class? | | |
| 4.6.26. | Answer: instanceof object | | |