Which best describes the purpose of Exceptions?
A- They are only there to annoy you when testing code
B- Increases data security
C- A way for methods to report that something has gone wrong
D- Helps debugging compiler errors
Answer: C- A way for methods to report that something has gone wrong
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Answer the following statements true (T) or false (F)
1. When the Write Line method writes data to a file, it writes a null character immediately following the data. 2. When working with files, you can write a try-catch statement to handle unexpected errors. 3. You can use the Write Line or Write methods from the Stream Reader class to write numbers to a text file, but the numbers are converted to strings. 4. When a program writes to an output file, a special value known as a translator keeps track of the current position in the file. 5. When reading numeric data from a text file, the Parse and Try Parse methods can be used to convert the items from string values to numeric data types.
Which of the following operations is not efficiently supported by a sin gly-linked list?
a. accessing the element in the current position b. insertion after the current position c. insertion before the current position d. moving to the position immediately following the current position e. all of the above are efficiently supported
Accessor that returns value of a matrix entry mat[r][c]
What will be an ideal response?
Encryption is more than simple password protection–it prevents users from ________
A) deleting the file B) saving the file C) editing the file D) opening the file