java - 将数据输出到Java中另一个类中的String

Question

我目前无法从列表中提取某些值。我要打印theData到另一个名为 Card 的类中的 String我不知道该怎么做:

private List<FootballPlayer> getData() {
    List<FootballPlayer> theData = new ArrayList<FootballPlayer>();
    // create a Scanner and grab the data . . .
    Scanner scanner = null;
    String dataPath = dbLocation + File.separator + "text" + File.separator + "players.db";
    String imagePath = dbLocation + File.separator + "images";
    try {
        scanner = new Scanner(new File(dataPath));
    } catch (FileNotFoundException fnf) { 
        System.out.println(fnf.getMessage());
        System.exit(0);
    }

    // scan player.db file line-by-line
    scanner.useDelimiter("\n");
    while (scanner.hasNext()) {
        String line = scanner.next().trim();
       // trim used to trim for new line
        String[] bits = line.split(":");
        String t = bits[0];                    // title
        String imgFileName = bits[1];          // image file name
        int pa = Integer.parseInt(bits[2]);     // pace
        int sh = Integer.parseInt(bits[3]);     // shooting
        int dr = Integer.parseInt(bits[4]);    // dribbling
        int ph = Integer.parseInt(bits[5]);    // physical
        // create the image
        ImageIcon img = new ImageIcon(imagePath + File.separator +  imgFileName);
      // Create the business object
       FootballPlayer player = new FootballPlayer(t, img, pa, sh, dr, ph);
      // add it to the list ... simple as ...
      theData.add(player);
}
  scanner.close(); 
  return theData;

}

如果有帮助的话，我的players.db目前看起来像这样:

Pique:DFPique.png:66:60:54:76
Ramos:DFRamos.png:79:66:60:82
Maldini:LEGMaldini.png:86:67:56:80
Pele:LEGPele.png:95:94:89:73
DiMaria:MFDiMaria.png:90:87:79:71
Neymar:MFNeymar.png:90:92:80:58
Berahino:STBerahino.png:81:70:69:55
Ronaldo:STRonaldo.png:98:99:99:89

Answer 1

我认为你的问题可能出在另一个类中，如果你想输出数组列表中的内容，你必须迭代它，并且你的足球运动员需要一个字符串方法，你可以使用这个对象是你的类，它有你的您发布的 getdata 方法

for(FootballPlayer each: object.getData())
System.out.println(each.toString());