[Solved] Identify the error in this code snippet:File.WriteAllText("output.txt", "Hello World"); File.WriteAllText("output.txt", "New Content"); string text = File.ReadAllText("output.txt"); Console.... | C Sharp (C#)

C Sharp (C#) - File IO

Identify the error in this code snippet:

File.WriteAllText("output.txt", "Hello World");
File.WriteAllText("output.txt", "New Content");
string text = File.ReadAllText("output.txt");
Console.WriteLine(text);

AFile.WriteAllText cannot be called twice on the same file

BThe second WriteAllText overwrites the first content

CFile.ReadAllText returns null if file is overwritten

DNo error; output will be "Hello WorldNew Content"

Step-by-Step Solution

Solution:

Step 1: Understand WriteAllText behavior
Each call to WriteAllText overwrites the file content completely.
Step 2: Analyze the output after two writes
The second call replaces "Hello World" with "New Content".
Final Answer:
The second WriteAllText overwrites the first content -> Option B
Quick Check:
WriteAllText overwrites file = B [OK]

Quick Trick: WriteAllText replaces file content, not appends [OK]

Common Mistakes:

MISTAKES

Thinking it appends content
Expecting null from ReadAllText
Believing multiple writes cause error

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More C Sharp (C#) Quizzes

Identify the error in this code snippet:

Step 1: Understand WriteAllText behavior

Step 2: Analyze the output after two writes

Final Answer:

Quick Check:

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