java拆分文本并写入组合框

Question

它只写comboBox1。有什么问题吗？为什么它不写入其他组合框

JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(this);

try {
    FileReader fr = new FileReader("C:\\Users\\hatice\\Desktop\\191220009_KursadBugrahan_Yapar\\src\\lab7\\konfigurasyon.txt");
    BufferedReader br = new BufferedReader(fr);
    String line = br.readLine();
    
    while(line != null){
        String[] name = line.split("//");
        switch(name[0]){
            case "tank":
                jComboBox1.addItem(name[1]);
                break;
            case "büyücü":
                jComboBox2.addItem(name[1]);
                break;
            case "nişancı":
                jComboBox3.addItem(name[1]);
                break;
            case "suikastçi":
                jComboBox4.addItem(name[1]);
                break;
        }
        
        line = br.readLine();
    }
    
} catch (FileNotFoundException ex) {
    Logger.getLogger(NewJFrame.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
    Logger.getLogger(NewJFrame.class.getName()).log(Level.SEVERE, null, ex);
}