Method for calculating punctuation

Question

I have a file resultados.txt where is the id of the two teams and how many goals each scored in the game.

Through this file is created another file where is the name of the team, the total points of that team, how many wins had, how many draws, how many defeats, how many goals suffered and how many goals scored, ordered from the team that has more points to the one that has less.

And I wanted to do a function that would do that to me by giving the output file as input.

Rules:

• The winning team adds up to 3 points.
• In the event of a tie, each team adds 1 point.
• Defeat sum 0.

Code:

public int[] CalculoClassificacao(int[]array) {
    int i = 0;
    int[] arrayClass = new int[7];
    while(i<array.length) {
        array[i] = i * 2;
        i++;
    }

    try {
        String nomeFicheiroResultados = "classificacao-final.txt";
        String newLine = System.getProperty("file.separator");
        File ficheiro = new File(nomeFicheiroResultados);
        FileWriter escritor = new FileWriter(ficheiro);
        for(int j=0; j<array.length; j++) {
            String texto = array[j]+ newLine;
            arrayClass = array;
            escritor.write(texto);
        }
        escritor.close();
    } catch(IOException err) {
        System.out.println("Ocorreu um erro: " + err);
    }

    return arrayClass;
}

CSV file:

1;5;2;1   
2;4;0;4