[Solved] Which of the following is the correct syntax to write text to a file using StreamWriter in C#? - Ans: using(StreamWriter sw = new StreamWriter("file.txt")) { sw.WriteLine("Hello"); } | C Sharp (C#)

C Sharp (C#) - File IO

Which of the following is the correct syntax to write text to a file using StreamWriter in C#?

AStreamWriter.WriteLine("file.txt", "Hello");

BStreamWriter sw = new StreamWriter.WriteLine("file.txt", "Hello");

CStreamWriter sw = new StreamWriter("file.txt"); sw.Write("Hello"); sw.Close();

Dusing(StreamWriter sw = new StreamWriter("file.txt")) { sw.WriteLine("Hello"); }

Step-by-Step Solution

Solution:

Step 1: Recognize correct StreamWriter usage
Using statement ensures proper disposal of StreamWriter after writing.
Step 2: Validate syntax correctness
using(StreamWriter sw = new StreamWriter("file.txt")) { sw.WriteLine("Hello"); } correctly creates StreamWriter and writes a line inside using block.
Final Answer:
using(StreamWriter sw = new StreamWriter("file.txt")) { sw.WriteLine("Hello"); } -> Option D
Quick Check:
StreamWriter write syntax = using block with WriteLine [OK]

Quick Trick: Use 'using' to auto-close StreamWriter after writing [OK]

Common Mistakes:

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Which of the following is the correct syntax to write text to a file using StreamWriter in C#?