[Solved] Identify the error in the following code snippet: File.Copy("source.txt", "dest.txt"); File.Delete("source.txt"); File.Copy("source.txt", "dest.txt"); | C Sharp (C#)

C Sharp (C#) - File IO

Identify the error in the following code snippet:

File.Copy("source.txt", "dest.txt");
File.Delete("source.txt");
File.Copy("source.txt", "dest.txt");

ANo error, code runs fine

BFile.Delete should be called before the first File.Copy

CFile.Copy cannot copy files with .txt extension

DSecond File.Copy will throw an exception because source.txt was deleted

Step-by-Step Solution

Solution:

Step 1: Trace the file operations
First, source.txt is copied to dest.txt. Then source.txt is deleted. Finally, the code tries to copy source.txt again.
Step 2: Identify the problem
After deletion, source.txt no longer exists, so the second copy call will throw a FileNotFoundException.
Final Answer:
Second File.Copy will throw an exception because source.txt was deleted -> Option D
Quick Check:
Copy after delete causes error [OK]

Quick Trick: Cannot copy a file after deleting it [OK]

Common Mistakes:

MISTAKES

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