How to save user's input into separate text file

Question

First off, I must apologize because there is so many questions like these but I don't quite get them. I'm taking Java tutorials but I'm stuck here.

How do I store the user's input into a text file?

Here is my code.

import java.util.ArrayList;
import java.util.Scanner;
import java.util.Random;

public class UserInput {

public static void main(String[] args) {

    ArrayList<String> fullName = new ArrayList<String>();
    ArrayList<String> userId = new ArrayList<String>();
    ArrayList<String> qA = new ArrayList<String>();

    Scanner sc = new Scanner(System.in); 

    while (true) {

       System.out.println("Please enter your Full Name: ");
       fullName.add(sc.nextLine());

       System.out.println("Please enter your ID: ");
       userId.add(sc.nextLine());

       System.out.println("What is your race/ethinicity? A. Hispanic/Latino, B. Asian, C. Caucasian, D. African American: ");
       qA.add(sc.nextLine());

       System.out.println("What is your preferred language? A. Spanish, B. English, C. Portugues, D. French: ");
       qA.add(sc.nextLine());

       System.out.println("What is your political affiliation? A. Republican, B. Democrat, C. Green, D. None: ");
       qA.add(sc.nextLine());

       System.out.println("What is your religious practice? A. Christian, B. Islam, C. Judaism, D. Hinduism: ");
       qA.add(sc.nextLine());

       System.out.println("What is your sexual orientation? A. Homosexual, B. Heterosexual, C. Bisexual, D. Asexual: ");
       qA.add(sc.nextLine());

       System.out.println("What is your favorite ice cream? A. Vanilla, B. Chocolate, C. Banana, D. Gum: ");
       qA.add(sc.nextLine());

       System.out.println("What is your favorite activity? A. Running, B. Walking, C. Sleeping, D. Eating: ");
       qA.add(sc.nextLine());

       System.out.println("What is your favorite color? A. Burgundy, B. Black, C. Gold, D. Blue: ");
       qA.add(sc.nextLine());

       System.out.println("What is your favorite clothing item? A. Shoes, B. Hats, C. Shirts, D. Rings: ");
       qA.add(sc.nextLine());

       System.out.println("What is your favorite pet? A. Dog, B. Cat, C. Tiger, D. Turtle: ");
       qA.add(sc.nextLine());

       Random random = new Random();

       for (int i =0; i < 1; i++) {

           int answerScore = random.nextInt(10) + 1;
           System.out.println("Test Score " + answerScore + "/10");

       }

       break;

    }
}

}

I would want to know how to store the user's name, ID, and answers to a separate .txt file.

Thanks in advance!

Hi, and welcome to StackOverflow. This is not a code-writing service, nor a tutorial service. From what you posted, you haven't actually tried anything. The Java Tutorials cover this subject - if you have trouble, post what you tried and what's going on. See How to Ask for guidance on asking questions here. — betseyb
– betseyb, Commented Apr 26, 2017 at 15:38

Anne · Accepted Answer · 2017-04-26 18:10:08Z

2

 public void saveData(ArrayList<String>fullName){ 
     try {
        File newTextFile = new File("D:/textfile.txt");//path of the file 
        FileWriter fw = new FileWriter(newTextFile);
        for(String str: fullName) {
        fw.write(str);
        }
        fw.close();

    } catch (IOException io) {
        io.printStackTrace();
    }

edited Apr 26, 2017 at 18:10

answered Apr 26, 2017 at 15:34

Anne

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Comments

Ahmad Alfawwaz Timehin · Accepted Answer · 2017-04-30 08:42:43Z

Your usage of an indefinite loop is redundant because the loop never iterates. instead you could use the following

import java.util.ArrayList;
import java.util.Scanner;
import java.util.Random;

public class UserInput
{
    String fullName;
    String userId;
    ArrayList<String> qA = new ArrayList<String>();

    public static void main(String[] args)
    {

        Scanner sc = new Scanner(System.in); 

        while (true) {

           System.out.println("Please enter your Full Name: ");
           fullName = sc.nextLine();

           System.out.println("Please enter your ID: ");
           userId = sc.nextLine();

           System.out.println("What is your race/ethinicity? A. Hispanic/Latino, B. Asian, C. Caucasian, D. African American: ");
           qA.add(sc.nextLine());

           System.out.println("What is your preferred language? A. Spanish, B. English, C. Portugues, D. French: ");
           qA.add(sc.nextLine());

           System.out.println("What is your political affiliation? A. Republican, B. Democrat, C. Green, D. None: ");
           qA.add(sc.nextLine());

           System.out.println("What is your religious practice? A. Christian, B. Islam, C. Judaism, D. Hinduism: ");
           qA.add(sc.nextLine());

           System.out.println("What is your sexual orientation? A. Homosexual, B. Heterosexual, C. Bisexual, D. Asexual: ");
           qA.add(sc.nextLine());

           System.out.println("What is your favorite ice cream? A. Vanilla, B. Chocolate, C. Banana, D. Gum: ");
           qA.add(sc.nextLine());

           System.out.println("What is your favorite activity? A. Running, B. Walking, C. Sleeping, D. Eating: ");
           qA.add(sc.nextLine());

           System.out.println("What is your favorite color? A. Burgundy, B. Black, C. Gold, D. Blue: ");
           qA.add(sc.nextLine());

           System.out.println("What is your favorite clothing item? A. Shoes, B. Hats, C. Shirts, D. Rings: ");
           qA.add(sc.nextLine());

           System.out.println("What is your favorite pet? A. Dog, B. Cat, C. Tiger, D. Turtle: ");
           qA.add(sc.nextLine());

           Random random = new Random();

           for (int i =0; i < 1; i++) {
               int answerScore = random.nextInt(10) + 1;
               System.out.println("Test Score " + answerScore + "/10");
           }

           boolean youWantToWrite = true;
           if (youWantToWrite)
           {
               writeValuesToFile();
           }
        }
    }

    public static void writeValuesToFile()
    {
       java.io.File f = new java.io.File("FileName.txt");
        try (PrintWriter out = new PrintWriter(f);)
        {
            out.println(fullName);
            out.println(userId);
            for (String s : qA)
            {
                out.println(s);
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}

Error in "out.println(fullName);" fullName cannot be resolved to a variable.

Community · Accepted Answer · 2017-05-23 12:26:01Z

See https://stackoverflow.com/a/6548204 for how to write an ArrayList<String> into a text file. Furthermore, I think fullName and userId can be simple Strings, since they only store one value?

So in your case:

//get values ...

java.io.FileWriter writer = new java.io.FileWriter("output.txt");
writer.write(fullName); 
writer.write(userId);
for(String str: qA) {
  writer.write(str);
}
writer.close();

If you keep fullName and userId as ArrayList<String>, do:

//get values ...

java.io.FileWriter writer = new java.io.FileWriter("output.txt");
writer.write(fullName.get(0)); 
writer.write(userId.get(0));
for(String str: qA) {
  writer.write(str);
}
writer.close();

Hope that helps you.

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