What is the process for extracting input from a Scanner in Java and saving the resulting value to a text file?

I am currently facing difficulty in transferring input values from a Scanner option in Java to a txt file. Although I can successfully read the data using try{} catch{}, I am encountering challenges when attempting to write the data from a scanner to the txt file. While I know how to write data to a txt file using PrintWriter, that method does not align with the requirements of my assignment. The task at hand requires me to develop a system that inputs values and stores the data in a text file, which is proving to be quite challenging.

I would greatly appreciate any assistance or solutions you may have to offer for this predicament. This project marks my first experience with Java. Thank you.

Answer №1

Scanner userInput = new Scanner(System.in);
String inputText = userInput.nextLine(); //retrieving user input

// Using try with resources to manage system resources efficiently
try ( FileWriter fileWriter = new FileWriter("example.txt"); ) {
  fileWriter.write(inputText); //writing input text to file
}

Answer №2

If you've successfully processed and modified the data, assuming it's now in a format ready to be saved as a String named data, with a corresponding intended file name stored in a String variable called filename,

You can proceed by:

// Creating a File object
File newFile = Paths.get("./" + filename).toFile();
        
newFile.delete(); // Deletes any existing file with same name
try(BufferedWriter writer = new BufferedWriter(new FileWriter(newFile))){
    writer.append(data); // Writing the data into buffer
    writer.flush(); // Saving the data to the file
    writer.close(); // Closing the buffered writer
} catch (Exception error) {
    error.printStackTrace();
}

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