Question

I was wondering how I can go about reading a text file into an array, the text file would contain something along the lines of:

string:string:string
string:string:string
string:string:string
etc

(string:string:string being on a single line)

Answer 1

UPDATE:

I think you might want to read a file into an array but you don’t know set the size of an array. You can use a java.util.ArrayList for that and then convert it to an array.

FileReader fin = new FileReader(fileName);
Scanner src = new Scanner(fin);
ArrayList<String> lines = new ArrayList<String>();
src.useDelimiter(":");

while (src.hasNext()) {
    lines.add(src.nextLine());
    // replace above line with array
}
String[] lineArray = new String[lines.size()];
lines.toArray(lineArray);

You can use the java.util.Scanner class and then use the useDelimiter function.

FileReader fin = new FileReader(fileName);
Scanner src = new Scanner(fin);

src.useDelimiter(":");

while (src.hasNext()) {
    System.out.println(src.next());
    // replace above line with array
}

Example here