I know this question is similar to another question in stackoverflow. But it doesnt same. I want to modify initcomponents method because I have old version source code of my jar file , and I have my new jar file(source code is deleted by mistakenly) I decompile my new jar and I got source but I didnot paste it on old version. Because it does not give permission. And the other problem is my .java class has form page too. And when I decompile my jar file I didnot see the myclass.form file.How can I get it back by decompile the code and how can I paste it my old source code.
Thanks.
Because you are using NetBeans, the deleted file may yet be under local version control.
Create a new file having the same name and location.
Right click on the file's tab and select
History.Click on the arrows to restore the missing content.
Learn layouts and free your inner GUI designer.
来源：https://stackoverflow.com/questions/19714659/how-to-modify-code-to-the-initcomponents-method-on-net-beans