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Select the statement that is not true for r+ mode.
(1) If the file does not exist, it gives an error.
(2) Both reading and writing can be performed.
(3) If the file does not exist, it creates a new file.
(4) Existing data is not truncated.
(1) If the file does not exist, it gives an error.
(2) Both reading and writing can be performed.
(3) If the file does not exist, it creates a new file.
(4) Existing data is not truncated.
- a)1
- b)3
- c)4
- d)2
Correct answer is option 'B'. Can you explain this answer?
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Select the statement that is not true for r+ mode.(1) If the file does...
Explanation:
Reading and Writing in r+ Mode:
In the r+ mode, both reading and writing operations can be performed on a file. When a file is opened in r+ mode, the file pointer is positioned at the beginning of the file, and both reading and writing operations can be carried out.
Creating a New File in r+ Mode:
Unlike the statement mentioned in option 3, if the file does not exist in r+ mode, it does not create a new file. Instead, it gives an error indicating that the file does not exist. This error needs to be handled appropriately in the code to avoid any issues.
Existing Data Truncation in r+ Mode:
When a file is opened in r+ mode, the existing data in the file is not truncated. This means that any data present in the file will remain intact, and new data can be written or existing data can be read without affecting the existing content.
Therefore, option 3 is not true for r+ mode as it does not create a new file if the file does not exist. It is important to handle the error appropriately to ensure smooth execution of the program when working with files in r+ mode.
Reading and Writing in r+ Mode:
In the r+ mode, both reading and writing operations can be performed on a file. When a file is opened in r+ mode, the file pointer is positioned at the beginning of the file, and both reading and writing operations can be carried out.
Creating a New File in r+ Mode:
Unlike the statement mentioned in option 3, if the file does not exist in r+ mode, it does not create a new file. Instead, it gives an error indicating that the file does not exist. This error needs to be handled appropriately in the code to avoid any issues.
Existing Data Truncation in r+ Mode:
When a file is opened in r+ mode, the existing data in the file is not truncated. This means that any data present in the file will remain intact, and new data can be written or existing data can be read without affecting the existing content.
Therefore, option 3 is not true for r+ mode as it does not create a new file if the file does not exist. It is important to handle the error appropriately to ensure smooth execution of the program when working with files in r+ mode.
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Select the statement that is not true for r+ mode.(1) If the file does...
- The r+ mode opens a file in both reading and writing mode.
- In r+ mode, the existing data is not deleted because this mode also allows the user to read the file.
- The r+ mode does not create a file in case it does not exist. Even though the write mode allows this, the r+ mode is also used for reading. A non-existent file cannot be read. So, the r+ mode raises an error in a file name is provided which is not present in the current directory.
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Select the statement that is not true for r+ mode.(1) If the file does not exist, it gives an error.(2) Both reading and writing can be performed.(3) If the file does not exist, it creates a new file.(4) Existing data is not truncated.a)1b)3c)4d)2Correct answer is option 'B'. Can you explain this answer?
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