file-io Archives - Page 7 of 9

Read file line by line using ifstream in C++

The contents of file.txt are: 5 3 6 4 7 1 10 5 11 6 12 3 12 4 Where 5 3 is ...

April 26, 2022
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How to append text to an existing file in Java?

I need to append text repeatedly to an existing file in Java. How do I do that? 3Best Answer 31

April 25, 2022
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How do I save a String to a text file using Java?

In Java, I have text from a text field in a String variable called “text”. How can I save the contents of the ...

April 22, 2022
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Print string to text file

I’m using Python to open a text document: text_file = open("Output.txt", "w") text_file.write("Purchase Amount: " 'TotalAmount') text_file.close() I want to substitute the value ...

April 21, 2022
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UnicodeDecodeError: ‘charmap’ codec can’t decode byte X in position Y: character maps to

I’m trying to get a Python 3 program to do some manipulations with a text file filled with information. However, when trying to ...

April 20, 2022
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How can I open multiple files using “with open” in Python?

I want to change a couple of files at one time, iff I can write to all of them. I’m wondering if I ...

April 20, 2022
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open() in Python does not create a file if it doesn’t exist

What is the best way to open a file as read/write if it exists, or if it does not, then create it and ...

April 20, 2022
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File to byte[] in Java

How do I convert a java.io.File to a byte? 27 s 27 From JDK 7 you can use Files.readAllBytes(Path). Example: import java.io.File; import ...

April 19, 2022
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How do I check if a file exists in Java?

How can I check whether a file exists, before opening it for reading in Java (the equivalent of Perl’s -e $filename)? The only ...

April 17, 2022
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