Swing：將數據從JFrame傳遞到另一個

Question

我在我的程序中有兩種形式，一種是基本的應用程序形式，它顯示應用何時啓動，另一種形式是向數據庫添加實體的形式。它直觀地工作：在默認窗體中單擊add按鈕，第二個窗體顯示，在其中填充一些文本區域並單擊done按鈕。

我的問題，如何將數據從第二種形式傳遞給第一種？

Answer 1

method 1 : 
1 : create 1 form 
2 : add all fields for entering fields and also the fields from the confirmation form 
3 : hide the confirmation fields 
4 : when user clicks submit , hide the fields of first form , show the fields of second form 

thus you all the data in one form only and you can handle the data as you want 

ohk then lets try this 

create a form 1 
create a form 2 
create a bean class having all the fields from form 1 
now create a simple main class calling form 1 
when user submits the form 1 , take all the values from form1 , create an object of the bean , store the values in the bean object , thus you are still in the main class 
after setting the values in the bean , call the form 2 frame , and set the fields in form 2 by using the same object of the bean class