How do I set variable equal to the amount lines of strings that I have in my text doc for Java?

Question

I am putting together strings such as:

spagetti

Spinich

cheese

etc down the list in a text doc, how can I assign each a specified variable that I can call from in eclipse ?

like calling spagetti as “1” or “1a”

I am new at java and would like to know

All I have right now is

{

import java.util.Scanner;

import java.io.File;

import java.io.FileNotFoundException;

public class FileAccess {

    private static String fileName = "ingredients";

    private static Scanner inputStream = null;

}

}

not sure what you are meaning, but maybe you are thinking of an Array? — Scary Wombat, Apr 24 '17 at 02:38
Based on the title, you want to count the number of lines in the file and store into a variable? — Meme Composer, Apr 24 '17 at 02:39
maybe have a look at http://stackoverflow.com/a/4716623/2310289 — Scary Wombat, Apr 24 '17 at 02:48
@Dummy Yah, like assign each line on the text with a certain variable, there is about 30 of them so I can call them through an object — j doe, Apr 24 '17 at 02:48
try a String array like `String [] strArray` where `strArray[0]` will be your first String — Scary Wombat, Apr 24 '17 at 03:00

score 0 · Answer 1 · answered Apr 24 '17 at 03:27

You can try something like this

Path filePath = Paths.get("path/to/your/file");
String[] lines = Files.newBufferedReader(filePath)
                      .lines()
                      // discard lines that only contain whitespaces
                      .filter(line -> !line.matches("^\\s+$")
                      .toArray(String[]::new);

So now you can access the first line as lines[0], second line as lines[1], etc.

Or traverse the array

for (int i = 0; i < lines.length; i++)
    System.out.println(lines[i]);

Or use for-each loop

for (String line: lines)
    System.out.println(line);

How do I set variable equal to the amount lines of strings that I have in my text doc for Java?

1 Answers1