File.txt contains two lines: This And this is line2 What is the output of the following code snippet? int main() { ifstream read_file; read_file.open ("File.txt"); string linel, line2; read_file >> linel; getline (read_file, line2); cout << linel << endl; cout <
File.txt contains two lines: This And this is line2 What is the output of the following code snippet? int main() { ifstream read_file; read_file.open ("File.txt"); string linel, line2; read_file >> linel; getline (read_file, line2); cout << linel << endl; cout <
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:The text in the image is as follows:
---
**File.txt contains two lines:**
```
This
And this is line2
```
**What is the output of the following code snippet?**
```cpp
int main()
{
ifstream read_file;
read_file.open("File.txt");
string line1, line2;
read_file >> line1;
getline(read_file, line2);
cout << line1 << endl;
cout << line2 << endl;
return 0;
}
```
**Options:**
1. ( ) This
And this is line2
2. ( ) This And this is line2
3. ( ) This
4. ( ) This is line2
---
**Explanation:**
The code snippet reads from "File.txt" using two different methods: the extraction operator (`>>`) and `getline()`. The first method reads a single word ("This") into `line1`, and `getline()` reads the rest of the first line including whitespace (which is none) and the second line into `line2`. Thus, the output will be:
```
This
And this is line2
```
The first option is the correct choice. Note the extra space at the beginning of the second line output due to the leading space from the file.
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