text-files

[Solved] Memory issues in-memory dataframe. Best approach to write output?

by

I have been using the following snippet: library(data.table) filepaths <- list.files(dir) resultFilename <- “/path/to/resultFile.txt” for (i in 1:length(filepaths)) { content <- fread(filepaths, header = FALSE, sep = “,”) ### some manipulation for the content results <- content[1] fwrite(results, resultFilename, col.names = FALSE, quote = FALSE, append = TRUE) } finalData <- fread(resultFilename, header = FALSE, … Read more

[Solved] C++ Text Files usage [closed]

by

I ran the code in gdb, it runs perfectly. It opens the file, gets the < cr > character from stdin, writes that to the first line which wipes out the first line, then tries to read the first line which is empty so there is no output. Good job 8). You’re just having trouble … Read more

[Solved] How to read from textfile in java? [closed]

by

What you want is to use a BufferedReader instance to read from the file, and parse each line that you get from it. For example: try { BufferedReader reader = new BufferedReader(new FileReader(“filename”)); String line; while ((line = reader.readLine()) != null) { // parse your line here. } reader.close(); // don’t forget to close the … Read more

[Solved] How to save results from the game to text file [closed]

by

I’ve created a basic class for you that will save the wins to a text file and retrieve them from a text file. import java.io.File; import java.io.FileNotFoundException; import java.io.PrintWriter; import java.util.Scanner; public class WinsFileManager { String path = System.getProperty(“user.home”).replace(“\\”, “\\\\”) + “\\”; public int getWins(String fileName) { String fullPath = path + fileName; int wins … Read more

[Solved] How to create a .txt file using c#? [closed]

by

Try this, if you want to save username password in the same file string fileName = textBox1.Text + “.txt”; System.IO.File.WriteAllText(@”C:\\Users\\User\\Documents\\1ClickData\\ID\\” + fileName, “Username=”+textBox1.Text+” Password=”+textBox2.Text); or if you want to save username and password in separate file //for username string fileName1 = textBox1.Text + “.txt”; System.IO.File.WriteAllText(@”C:\\Users\\User\\Documents\\1ClickData\\ID\\” + fileName1, textBox1.Text); //for password string fileName2 = textBox2.Text + … Read more

[Solved] Read txt file from line to line to list?

by

// Retrieve 10 lines from Somefile.txt, starting from line 1 string filePath = “C:\\Somefile.txt”; int startLine = 1; int lineCount = 10; var fileLines = System.IO.File.ReadAllLines(filePath) .Skip((startLine-1)) .Take(lineCount); solved Read txt file from line to line to list?

[Solved] How to parse a simple text file in java

by

import java.io.BufferedReader; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; public class Read_Text_File { public static void main(String[] args) { System.out.println(getValues()); } public static ArrayList<String> getValues() { FileInputStream stream = null; try { stream = new FileInputStream(“src/resources/java_txt_file.txt”); } catch (FileNotFoundException e) { e.printStackTrace(); } BufferedReader reader = new BufferedReader(new InputStreamReader(stream)); String strLine; ArrayList<String> … Read more

[Solved] Write longest and shortest palindrome from text file

by

Similar to previous answer but with the following suggestions Initialize longest and shortest. Ignore case when comparing. Could still do this with SequenceEqual instead of comparing strings. May not be needed if you know you won’t be comparing Anna to annA. When checking if you found the shortest you need to remember that shortest.Length with … Read more

[Solved] How do you get python to read a whole text file, not just one line?

by

Your were breaking out of the loop: (Btw i added a with statent for opening the file in a more pythonic way) order = input(“Please enter the name of the product you wish to purchase\n”) with open(“barcode.txt”,”r”) as myfile: details=myfile.readlines() #reads the file and stores it as the variable ‘details’ for line in details: if … Read more