java - JComboBox 不显示结果

Question

我试图在数组列表上基于 for 和 if 循环设置 JCombobox 中的值。

     //salesman=the name of the combobox
    salesman = new javax.swing.JComboBox();

DefaultComboBoxModel model = new DefaultComboBoxModel();
 salesman.setModel(model);

/*company is an object of Company class, that gets set with a setter method to ensure 
that the gui will be pointing to the right object. and it does contains the data i want, so 
i am sure that company is not the problem */       
//loop tp set box list 
for (Employee current : company.getArray()){

 if (current instanceof Salesman) {
   salesman.addItem(current.getCode());
  }

}

但组合框仍为空。这是为什么？

Answer 1

无论如何，我建议您执行以下操作:

1. 覆盖 Salesman 类的 toString() 方法以获得所需的视觉表示(即代码)。

2. 将销售人员而不是代码添加到组合框模型。