用tab键切换控件焦点的问题

Question

setNextFocusableComponent(Component aComponent)

Answer 1

你可以这样顺着写:textfield1.setNextFocusableComponent(button2);
button2.setNextFocusableComponent(textfield4);
textfield4.setNextFocusableComponent(button5);

Answer 2

重载isFocusTraversable方法也行
定义的时候如下：
textarea3 = new JTextArea()
{
  public boolean isFocusTraversable()
  {
    return isEditable();
   }
};