text flies Flashcards
(10 cards)
1
Q
What is data persistence?
A
Making data available beyond program execution.
2
Q
One way to persist data besides text files?
A
Use a database (e.g., SQL Server, MySQL).
3
Q
Disadvantage of text files for persistence?
A
Difficult to identify field boundaries due to variable length.
4
Q
How to overcome variable length field issue?
A
Use delimiters like , or |.
5
Q
What does CSV stand for?
A
Comma Separated Values.
6
Q
How do you read a file in C#?
A
File.ReadAllText(“filename.txt”);
7
Q
How do you write to a file in C#?
A
File.WriteAllText(“filename.txt”, data);
8
Q
How do you append to a text file?
A
File.AppendAllText(“filename.txt”, data);
9
Q
What is a stream?
A
A flow of data used to read/write files.
10
Q
Why use using for file I/O?
A
Ensures automatic disposal of resources.
