1.31.Questions |

| 1.31.1. | Java byte data type has the same amount of non-zero positive and negative values available. |

| 1.31.2. | Answer: Java byte size |

| 1.31.3. | Question: Choose the valid identifiers. |

| 1.31.4. | Answer: Test the valid identifiers |

| 1.31.5. | What are valid the main() method entry point of an application |

| 1.31.6. | Answer: valid main method |

| 1.31.7. | What are the three top-level elements occur in a source file |

| 1.31.8. | Answer: three top level elements |

| 1.31.9. | What is the proper sequence for three top-level elements in a source file |

| 1.31.10. | Answer: proper sequence for top-level elements |

| 1.31.11. | What is the length for array x in the following code? |

| 1.31.12. | Answer: get the length of an array |

| 1.31.13. | What is the initialized value for x[24] |

| 1.31.14. | Answer: initialized value for array |

| 1.31.15. | What is the value for array[array.length]? |

| 1.31.16. | Answer: value for array[array.length] |

| 1.31.17. | What value is printed for public member variable? |

| 1.31.18. | Answer: deal with public member value |

| 1.31.19. | What is the printed value? |

| 1.31.20. | Answer: change member field value |

| 1.31.21. | What is the printed value after object recreation? |

| 1.31.22. | Answer: method level value |