Top "File-io" questions

How to read a local text file?

I’m trying to write a simple text file reader by creating a function that takes in the file’s …

javascript file-io xmlhttprequest

How can I read a large text file line by line using Java?

I need to read a large text file of around 5-6 GB line by line using Java. How can I …

java performance file-io io garbage-collection

Batch file to copy files from one folder to another folder

I have a storage folder on a network in which all users will store their active data on a server. …

batch-file file-io

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 …

java file file-io text-files

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 $…

java file-io io file-exists

Batch file to delete files older than N days

I am looking for a way to delete all files older than 7 days in a batch file. I've searched around …

windows date batch-file file-io cmd

How do I create an Excel (.XLS and .XLSX) file in C# without installing Microsoft Office?

How can I create an Excel spreadsheet with C# without requiring Excel to be installed on the machine that's running …

c# .net excel file-io

File to byte[] in Java

How do I convert a java.io.File to a byte[]?

java file-io

Styling an input type="file" button

How do you style an input type="file" button?

html css file-io

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?

java file-io io text-files