如何检测JComboBox是否为空？

Question

How do I detect that a JComboBox is empty? Is it something like:

combobox.isEmpty()

Answer 1

What's wrong with JComboBox.getItemCount() ? If this method returns 0 , the component is empty.

Answer 2

if(JComboBox.getItemCount() != 0){
  //JComboBox is not empty - do something..  
}

Answer 3

我想你正在寻找getItemCount（）方法