4. Which of the following statements about using the PrintWriter object with a f
ID: 3916894 • Letter: 4
Question
4. Which of the following statements about using the PrintWriter object with a file name is correct?
If the output file does not exist, an IllegalArgumentException will occur
5. Which of the following is NOT a typical usage of a Scanner object.
Read input from the keyboard
7. Which of the following statements about a PrintWriter object is true?
8.
One of the main points of exception handling in Java is to separate detection and handling of errors. Which of the following is NOT an advantage of this technique?
If the output file already exists, the existing data will be discarded before new data are written into the file.Explanation / Answer
4. Which of the following statements about using the PrintWriter object with a file name is correct?
Option A - If the output file already exists, the existing data will be discarded before new data are written into the file.
5. If the output file does not exist, an IllegalArgumentException will occur. Which of the following is NOT a typical usage of a Scanner object.
Option A - Format output for display to the screen.
7. Which of the following statements about a PrintWriter object is true?
Option B:- Data loss may occur if a program fails to close a PrintWriter object before exiting.
8. One of the main points of exception handling in Java is to separate detection and handling of errors. Which of the following is NOT an advantage of this technique?
Option D:- Can ensure certain resources are implicitly closed [eg:- File objects, Database connections, FileReader and FileWriter, these are automatically flushed/closed when an exception arises but its definitely not an advantage of Exception Handling in Java]
Please let me know in case of any clarifications required. Thanks!
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