reading from a text file and store it into an array JAVA

Question

Hello guys!

I'm new in JAVA programming and I have a problem.

I have a text file with multiple lines (a line looks like this "sugar;23;45") and I want to extract the numbers from each line make a sum with column 2 + column 3 and then store each result in an array.

The output should look as a table.

How could I do this? Can anyone help me?

Vulpes · Answer

Try this: import java.io.*; import java.util.*; public class Catalin { public static void main(String[] args) { ArrayList sumsList = new ArrayList (); try { BufferedReader br = new BufferedReader(new FileReader(catalin.txt)); String line; while ((line = br.readLine()) != null) { String[] items = line.split(;); int number = Integer.parseInt(items[1]); int number2 = Integer.parseInt(items[2]); sumsList.add(number + number2); } br.close(); } catch(IOException e) { System.out.println(I/O Error :  + e); } // convert ArrayList to int[] int[] sumsArray = new int[sumsList.size()]; for(int i = 0; i System.out.println(Line Sum); System.out.println(---- ---); for(int i = 0; i { System.out.println((i + 1) +   + sumsArray[i]); } } }