Array vs ArrayList

[Lund01]

I am busy with a program that reads in a file in an arrayList and then reads a 2nd file and looks if there are sentences beginning with a word that is in the arrayList.

But now I was wondering.
What can I use better?
An array or an arrayList?

[Tolls]

What do you mean by "better"?

Does your current code work?
Is it easy to understand?

[Lund01]

I decided to use an arraylist, only to find a small problem.

I am reading in a file that contains 2 lines.

>HSIBIYG
>OHOUBO7

But he only adds line 1 to the arrayList.

 
			// Create Scanner for file1.
			Scanner x = new Scanner(file1);
			// We read the lines one by one in the file.

			// Keeps track of the count after something has been found.
			int getal = 0;

			// Count the number of lines.
			if (getal > 0) {
				getal++;
			}

			if (x.hasNextLine()) {
				String line = x.nextLine();
				// Het ingelezen bestand word geprint.
				System.out.println(line);

				// ++ adds +1 every line.
				getal++;

				// We put what is in file1 into an arrayList.
				arrayList.add(line);
				System.out.println(arrayList);

			}

[Tolls]

That has nothing to do with ArrayList and everything to do with the fact you are only adding one line to it.

That's an 'if' statement, not a loop, so it'll only execute once.

[Lund01]

I first had a while and not an if.
But then he prints my other while loop 2 times.

[Tolls]

Well, that code there will only read a single line, and therefore only add a single line to the arraylist.